Performance Transmissions and Parts

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Parts Toll Free 1-888-2012066
Transmissions Toll Free 1-888-2012066
Speedometer Gears 1-888-8771008

 

 

 

 

 

 

 

 

 

 

 

Dodge
500 / 518 / 618 / 46RE / 47RE Transmissions

The level 2 Viper transmission comes with all four sets of Alto Red Eagle clutches with Kolene steels plus a direct clutch PowerPack, a Fairbanks TransAction Kit, Sonnax high performance low / reverse servo, Carbon fiber band and a heavy duty intermediate band strut, Sonnax Billet Aluminum 4 Ring Accumulator Piston, Sonnax 16% Oversize Intermediate Servo with Cover and the Power Wedge Intermediate Band Anchor. The heavy duty / high performance torque converter that comes with this package deal can be ordered in stall speeds up to 2800 RPM (gas #6D). This transmission (518, 618, 46RE, 47RE) is good for any type heavy duty / high performance use up to 500 (gas) horse power using pump gasoline, towing, 4WD, high performance and others. Add torque converter upgrade if needed. The Viper transmission has 7 major performance upgrades. All of this can be yours without a trade-in for $2542.00. Add $250.00 for a Diesel or V10. Add $100.00 for 1996 up 4WD. Add $299.00 for a diesel single clutch billet converter and $576.00 for a diesel triple clutch billet converter. Add $334.00 for a gas single clutch billet converter. The freight runs from free to $165.00 after freight discount in most cases. Click on the pictures below to see the Viper performance upgrades.

Performance Automotive and Transmission Center offers our high performance / heavy duty Dodge rear-wheel-drive transmissions on the web. This transmission can be installed in older 3-speed non-computer cars and trucks for a 30 to 40% increase in gas mileage on the road.

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Level 2 Viper, 46RE / 46RH Gas
Transmission ?
Under 500 HP ?
Type ?
Stall Speed ?
2WD or 4WD ?
Shirt Size ? - Free
Add $100, 1996 Up 4WD ?
Delivery Type ?
Add Converter Upgrade ?
Pan Upgrade ?
If you buy a 3 clutch diesel converter you must buy the billet input shaft.

Level 2 Viper, 47RE / 47RH Diesel

Transmission ?
Engine ?
Add Billet Input Shaft ?
Billet Flexplate ?
2WD or 4WD ?
Shirt Size ? - Free
Add $100, 1996 Up 4WD ?
Delivery Type ?
Add Converter Upgrade ?
Pan Upgrade ?

There will be a $275.00 core charge added to all Dodge diesel torque converters.

Level 2 48RE

Level 2 48RE transmission with a billet torque converter that has a large single clutch billet piston. Only buy this transmission if you have a diesel close to stock but you want a better than stock transmission. There is a $1400.00 core charge on the 48RE transmission. Cost $3341.00 plus core charge.

If you buy a 3 clutch diesel converter you must buy the billet input shaft.

Level 2 Viper, 48RE Diesel

Engine ?
Add Billet Input Shaft ?
Billet Flexplate ?
2WD or 4WD ?
Shirt Size ? - Free
Delivery Type ?
Add Converter Upgrade ?
Pan Upgrade ?

Dodge
518 / 618 / 46RE / 47RE Transmissions

The level 3 Mega Viper transmission comes with all four sets of Alto Red Eagle clutches and Kolene steels plus a direct clutch PowerPack, high capacity 5 clutch direct clutch drum, a Fairbanks TransAction Kit, performance 3-4 accumulator spring for a firmer shift into overdrive, high performance low / reverse servo, performance intermediate servo cover, Mopar 5 to 1 intermediate band apply lever (4.2 gas) giving an extra 31% torque holding capacity in second gear on diesel models, extreme duty brass impregnated carbon fiber flex band and a heavy duty intermediate band strut, Sonnax Billet Aluminum 4 Ring Accumulator Piston, Sonnax 16% Oversize Intermediate Servo with Cover and the Power Wedge Intermediate Band Anchor. A special manual valve allows converter fluid charge in park. It has the stronger Mega Spring for overdrive direct clutch apply with more holding power in reverse, 1st, 2nd and 3rd. The heavy duty / high performance torque converter that comes with this package deal can be ordered in stall speeds up to 2800 RPM for gas motors. The diesel transmission comes with our triple clutch billet converter and billet input shaft. This transmission (518, 46 RH / RE) is good for any type heavy duty / high performance use up to 700 (gas) horse power using pump gasoline, towing, 4WD, high performance and others. The Mega Viper transmission has 14 major performance upgrades (15 on diesel). All of this can be yours without a trade-in for $2827.00 on gas units and $4494.00 for the diesel or V10 transmission with a triple clutch billet converter. Add $334.00 for a gas single clutch billet converter. Add $100.00 for 1996 up 4WD. The freight runs from free to $165.00 after freight discount in most cases.

After building hundreds of our level 2 Viper transmissions over the past few years it's time to go to the next level, the level 3 Mega Viper. This transmission can be built for both gas and diesel applications. This transmission can be installed in the place of a 3 speed transmission in older non-computer cars and trucks for a 30 to 40% increase in gas mileage on the road.

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Level 3 Mega Viper, 46RE / 46RH Gas
Transmission ?
Under 500 HP ?
Type ?
Stall Speed ?
2WD or 4WD ?
Shirt Size ? - Free
Add $100, 1996 Up 4WD ?
Delivery Type ?
Add Converter Upgrade ?
Pan Upgrade ?
Level 3 Mega Viper, 47RE / 47RH Diesel
Transmission ?
Engine ?
Billet Flexplate ?
2WD or 4WD ?
Shirt Size ? - Free
Add $100, 1996 Up 4WD ?
Delivery Type ?
Add Converter Upgrade ?
Pan Upgrade ?

Diesel triple clutch billet converter with the billet stator option can be added for $165.00. This will stall 300 RPM lower than stock stall speed. Diesel triple clutch billet converter with the billet steel stator option can be added for $299.00. This will stall 500 RPM lower than stock stall speed.

There will be a $275.00 core charge added to all Dodge diesel torque converters.

Level 3 48RE

Level 3 48RE transmission with a triple clutch billet torque converter. Comes with the Billet Input Shaft and diesel triple clutch billet converter. The billet stator option can be added for $165.00. There is a $1400.00 core charge on the 48RE transmission. Cost $4126.00 plus core charge.

Level 3 Mega Viper, 48RE Diesel
Engine ?
Billet Flexplate ?
2WD or 4WD ?
Shirt Size ? - Free
Delivery Type ?
Add Converter Upgrade ?
Pan Upgrade ?

Buy a Viper, Mega Viper or RAMZILLA transmission and torque converter anytime during 2014 and receive your choice of a PATC fluid temperature gauge, transmission cooler or PATC Racing T-shirt Free !

  Free Freight Deal !  Extended for an indefinite period of time! Buy any performance / heavy duty overdrive transmission and torque converter and we'll pay up to $110.00 on the freight.

Convert your 3 speed to a 518 overdrive transmission, click here.

Dodge RWD Overdrive Instructions

 

 

 

 

 

 

 

 

 

 

 

 

 

Dodge

Convert Your 46RE / 47RE Transmission

to a

Level 4 / 5 48RE Transmission

The level 4 / 5 RAMZILLA transmission comes with four sets of Alto Red Eagle clutches and Kolene steels plus a direct 7 clutch PowerPack, high capacity extreme duty 5 clutch billet direct clutch drum (7 clutches with the PowerPack), 7 overdrive clutches - - a 40 to 75% increase in apply area, 5 forward clutches which is 25% more clutch apply area than a 48RE, 22% more total clutch apply area than a 47RE transmission, all three 48RE 6 pinion planet gears, front, rear and overdrive, the .055" thicker 48RE sun gear shell, the one piece Sonnax 300M hard input shaft and hub, a Fairbanks TransAction Kit (48RE has Transgo), performance 3-4 accumulator spring for a firmer shift into overdrive, high performance low / reverse servo, performance intermediate servo cover, a 5 to 1 intermediate band apply lever (4.2 gas) giving an extra 31% torque holding capacity in second gear on diesel models, extreme duty brass impregnated carbon fiber flex band and a heavy duty intermediate band strut, Sonnax Billet Aluminum 4 Ring Accumulator Piston, Sonnax 16% Oversize Intermediate Servo with Cover and the Power Wedge Intermediate Band Anchor. A special manual valve allows converter fluid charge in park. It has the stronger Mega Spring for overdrive direct clutch apply with more holding power in reverse, 1st, 2nd and 3rd. It comes complete with a deep finned cast aluminum pan that holds 2 extra quarts of fluid. The heavy duty / high performance torque converter that comes with this package deal can be ordered in stall speeds up to 5000 RPM for gas motors. The diesel transmission comes with our triple clutch billet converter with over 200% larger clutch apply area. This transmission is good for any type heavy duty / high performance use up to 800+ (gas) horse power using pump gasoline, towing, 4WD, high performance and others. The diesel version is good for over 1000 torque. The RAMZILLA transmission has 20 major performance upgrades. The best 48RE transmission on the planet can be yours without a trade-in for $6258.00 ($4858.00 with trade-in, see below), the gas 48RE transmission with a 10 inch billet lock-up torque converter or V10 / diesel 48RE transmission with a triple clutch billet converter. Gas or diesel, 2WD or 4WD. The freight runs from free to $165.00 after freight discount in most cases.

If you have a 48RE transmission to trade-in, in buildable condition you will receive a $1400.00 trade-in credit less the freight to get it here.

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Level 4 / 5 Ramzilla, 46RE / 46RH / 47RE / 47RH / 48RE

Transmission ?
Engine ?
Billet Flexplate ?
Billet 4WD Output Shaft ?
2WD or 4WD ?
Shirt Size ? - Free
Add $100, 1996 Up 46 or 47 4WD ?
Delivery Type ?
Add Converter Upgrade ?
Add Level 5 Upgrade ?

The level 5 RAMZILLA transmission comes with everything in the level 4 RAMZILLA transmission plus the #8X6 Big Daddy direct drum with 55% more piston apply area! This results in 55% greater clamping force and the #7R Extreme Duty hard intermediate shaft. Add $1199.00 to the level 4 price. Diesel triple clutch billet converter with the billet stator option can be added for $165.00. This will stall 300 RPM lower than stock stall speed. Diesel triple clutch billet converter with the billet steel stator option can be added for $299.00. This will stall 500 RPM lower than stock stall speed.

 

Add AerMet Billet Input Shaft Upgrade to Level 3 / 4 / 5 / Transmission with Billet Input. Cost $404.00

There will be a $275.00 core charge added to all Dodge diesel torque converters.

48RE Performance Rebuild, Click Here

68RFE Extreme Duty Transmission and Parts

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All PATC performance torque converters are manufactured in-house. This is some of the machinery in our torque converter shop. For a limited time PATC is looking for torque converter Dealers. Call Don at 1-888-8771008 or Blake at 1-888-2012066 for details. For a small buy-in you can get large discounts on torque converters. Main Torque Converter Page Click Here. Torque Converter and Parts Questions Email Blake Sales@700Raptor.com

Here's the bottom line, if you have a programmer or power adders you must have a performance / heavy duty transmission and torque converter for your transmission to last, because TurboDon says so. PATC performance torque converters are manufactured in-house at our state of the art torque converter shop. We have some of the best torque converter builders and machinists in the industry. We specialize in high performance / heavy duty converters that can be built to your specifications. We have diesel converters in many different levels, billet covers, billet clutch pistons, triple clutch, billet stators, steel stators and low stall versions. Our performance gas converters for street rods and racing are the best in the business. These converters come in many different performance levels. Many of these torque converters have over size Red or High Carbon clutch lining and billet covers. These can be ordered in stall speeds of 1200 to 5000. All PATC torque converters are spin balanced and leak tested.

PATC Torque Converter Video, Click Here

#6D. _DSC3173.JPG (34757 bytes) 500 / 518 / 727 / 904 / 46RE/RH (Not diesel, 618 or 47RE/RH), Viper Series Torque Converters. Your choice of stall speeds up to 2800 RPM. These converters have all bearing construction and a much better than stock clutch. Non-Lock-Up Cost $315.00. Lock-Up Cost $315.00.

 

 

 

 

 

 

 

 

 

 

Non-Lock-Up

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Stall

Lock-Up

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Stall

 

#6V. Eleven inch billet lock-up torque converter for 518 and 46RE transmissions. This converter comes with a dual bolt pattern for both new and old style bolt patterns. We will call you to get motor type, year and horse power. Will not fit a 1995 back 360 motor. Will not fit any motor that requires a weight on the torque converter. Cost $649.00

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Stall Speed
 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

#6B. Billet 10 inch lock-up converter with a 12 inch clutch for the 46RH / RE transmissions. Shown without the ring gear. Cost $1065.00

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Stall Speed

Dodge 722.6 HEMI Torque Converter, Click Here

#6DB. Four torque converter bolts for #6D converters. 8MM bolt with 14MM head. Cost $6.00.

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#NLUD and #LUD. Heavy duty Cummins diesel torque converters, used on our level 2 Viper transmission. Cost non-lock-up $399.00. Cost lock-up $499.00.

There will be a $275.00 core charge added to all Dodge diesel torque converters.

To buy this converter you must have a core to send to us.

Non-Lock-Up
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Lock-Up
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  _DSC2959.JPG (89969 bytes) _DSC3190.JPG (114675 bytes) _DSC3203.JPG (57817 bytes) #8DX. Cummins Diesel single clutch billet converter. Cost $650.00. Can be ordered with a billet clutch piston with a large oversize clutch. The billet CNC piston will not flex. This converter has a red lining that is 38% larger than a stock clutch. Can be ordered in a lower stall speed with the billet stator option. The increased power of a modified diesel engine raises the stall speed of stock converters, which is detrimental to vehicle towing performance and drivability. We now offers a low stall stator for Dodge diesel pickup truck owners who have increased the power output of their engines for added towing and general performance.

#8DX. $650.00
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#8DX with Billet Clutch Piston Option $800.00
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#8DX with Billet Clutch Piston & Billet Stator Options $965.00
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There will be a $275.00 core charge added to all Dodge diesel torque converters.

_DSC2947.JPG (109930 bytes) _DSC3190.JPG (114675 bytes)#8DXX. " Triple-Disk " Cummins Diesel 618 / 47RE / 48RE Triple Clutch Billet Converter with a Billet Apply Piston. The billet CNC piston will not flex. It has 112 square inches of red clutch apply surface compared to 35 15/16 square inches in a stock converter. This is a whopping 212% increase in apply area. Yes that's over three times the holding ability of a factory converter. Cost $1075.00. Can be ordered in a lower stall speed with the billet stator option. The increased power of a modified diesel engine raises the stall speed of stock converters, which is detrimental to vehicle towing performance and drivability. We now offers a low stall stator for Dodge diesel pickup truck owners who have increased the power output of their engines for added towing and general performance.

#8DXX $1075.00
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#8DXX with Billet Stator Option $1240.00
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. . . . . This torque converter can be built with higher stall speeds for the V-10 Viper motor in a SRT-10 Dodge pickup truck . . . . .

" Triple-Disk " Triple Clutch Torque Converter

Caution: Tire Shredding Neck Snapping Torque !

If you desire demonstrative torque and incredible efficiency we have your stator option !

  #8SS. Redesigned Velocistator blade count and profiles combine to improve the fluid coupling, transferring more torque to the rear wheels resulting in lower temperatures, increased fuel economy and vehicle performance. The Steel Velocistator Option can be added to the two above torque converters or bought separately. This stator will lower the stall speed approximately 500 RPM. The increased power of a modified diesel engine raises the stall speed of stock converters, which is detrimental to vehicle towing performance and drivability. We now offers this low stall steel stator for Dodge diesel pickup truck owners who have increased the power output of their engines for added towing and general performance. Greatly increased window opening size and increased fluid velocity allows us to provide you with the highest efficiency stator on the market today. The Velocistator is machined from high strength billet steel and built specifically for diesel engines with aftermarket power adders. The steel Velocistator is for very high torque engines. Fits 618, 47RE, 48RE and 68RFE converters. Can be substituted for the billet aluminum low stall stator as a $134.00 upgrade. Steel Stator Cost $299.00

Steel Stator Upgrade from Aluminum Low Stall Stator
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Steel Stator Alone
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Torque Converter Installation Instructions

  " 68RFE Triple-Disk Billet "

" Triple-Disk " Cummins Diesel 68RFE Triple Clutch Billet Converter with a Billet Apply Piston. The billet CNC piston will not flex. It has 112 square inches of RED clutch apply surface compared to 50 square inches in a stock converter. This is a whopping 124% increase in apply area. Yes that's over twice the holding ability of a factory converter plus a much better clutch lining.

_DSC3084.JPG (31961 bytes) _DSC2963.JPG (237459 bytes) _DSC3078.JPG (27561 bytes) _DSC3086.JPG (38423 bytes) _DSC3190.JPG (114675 bytes) #68B. 68RFE Triple Clutch Billet Torque Converter complete with billet aluminum Low Stall Stator. Cost $1425.00

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$134.00, Steel Stator Upgrade from Aluminum Low Stall Stator

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There will be a $275.00 core charge added to all 68RFE diesel torque converters.

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Features & Benefits:
• No machining required
• Tunable damper to 1,250 ft-lb torque capacity 
• Utilizes three high thermal, high torque capacity friction elements
• Improved oil flow across clutch plates
• Improved spring end caps prevent over-compression
• Reduced overall weight

 

" 68RFE Triple Disk Billet with Damper "

68RFE billet triple disc.jpg (22539 bytes)  #68S. Trucks with the Dodge Cummins diesel engine are commonly pushed beyond the limits for which they were designed. To upgrade the torque converter, PATC offers a heavy duty multi-plate converter clutch kit for the Chrysler 68RFE converter. The new Converter Assembly easily boost the converter capacity versus the stock one. The lock-up clutch is not a salvaged OE clutch, it is a new and unique design. The lock-up clutch damper can be tuned to work with engines ranging from stock up to 1,250 ft-lb of torque. 

What makes this particular converter so unique is the fact we have incorporated a new state of the damper assembly that now allows you enjoy the benefits of a triple disc converter without the transmission tuning parameters being altered. It is common within the Cummins community to need an aftermarket programmer installed and modified torque converter release times when switching to a triple disk billet in conjunction with the 68RFE. The converter can at times cause the vehicle demonstrate a slight shudder upon deceleration if not released. This is specifically caused by the removal of the factory Damper assembly. Another unique characteristic of this new converter is the dampener can be tuned by the removal or addition of internal dampener springs, giving us the opportunity to custom build the characteristics of this new billet torque converter to match your vehicles particular needs. This converter also carries 3 torque converter lock-up disc internally to spread the load. We also have a CNC'D billet apply piston allowing absolutely no deflection when applied. When this new converter is combined with our billet stators you now have unmatched efficiency with mountains of torque at your disposal. Cost $1425.00

#68S with Billet Aluminum Stator

cuts 300 RPM

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#68S with Billet Steel Stator

cuts 500 RPM

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All PATC performance torque converters are manufactured in-house. This is some of the machinery in our torque converter shop.

#7D. 518 / 727, Check it out ! 9 inch converter can be ordered in stall speeds of 2600 to 6000 RPM. Rated at 800 horse power. Cost $749.00

PATC 727 to 518 Deluxe Conversion Kit

#727518DK. This is the fully electronic no vacuum needed deluxe kit for the 727 to 518 swap. Made for diesels without vacuum and big cam gas motors with low vacuum. Comes with two governor speed sensors, throttle position sensor and a shift solenoid pigtail. What this kit does is makes a 518 transmission shift without a computer. Can be made for a non-lock-up torque converter for $18.00 less. Cost $325.00

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Overdrive
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727 to 518 Video Installation Instructions, Click Here

PATC 727 to 518 Conversion Kit

#727518. With these four parts you can convert your 727 transmission to a 518 overdrive transmission with locking torque converter. Lets say you drive an average of 400 highway miles per week, at that rate you could save as much as $1000.00 per year on gas, not to mention the 31% reduction in RPM. Your new 518 will have automatic shifts into overdrive and lock-up, no toggle switch needed. Now with adjustable vacuum switch. The instructions are at the bottom of this page. (11-25-06. I just saw this kit on the Internet by the copy cat competition for $1654.00.) Cost $85.00

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Overdrive
Converter Lock-Up

 

 

 

 

 

 

 

Transmission Level 2 - Viper Level 3 - Mega Viper Level 4 & 5 - Ramzilla
All Red Eagle Clutches and Kolene Steels Yes Yes Yes
Extra Clutches in Direct Clutch Set Yes - 1 Yes - 1 to 2 Yes - 2 to 4
Direct Clutch Drum Stock Stock 4 Clutch 5 Clutch #8D6 or Billet 5 Clutch #5X
Black Carbon Fiber Flex Band Yes --- ---
Extreme Duty Brass Impregnated Black Carbon Fiber Flex Band --- Yes Yes
Fairbanks TransAction Kit, Transgo in 48RE Yes Yes Yes
Performance Low / Reverse Servo Yes Yes Yes
Heavy Duty Intermediate Band Strut Yes Yes Yes
Core Charge Included Yes Yes Yes
$110.00 Free Freight Deal Applies Yes Yes Yes
7 Clutches in Direct Clutch Drum, 40% more clutch apply area than a 48RE, 75% more clutch apply area than a 47RE 4 / 5 Clutch 5 Clutch Yes 7
Performance 3-4 Accumulator Spring Extra Yes Yes
Cast Aluminum 2 Ring Accumulator Piston No Yes Yes
Performance Intermediate Servo Cover Extra Yes Yes
5 to 1 Intermediate Band Apply Lever on Diesel Models Extra Yes Yes
4.2 to 1 Intermediate Band Apply Lever on Gas Models Extra Yes Yes
Converter Fluid Charge in Park Yes Yes Yes
Mega Spring for Overdrive Direct Clutch Extra Yes Yes
Deep Finned Cast Aluminum Pan Extra Extra Yes
Performance Torque Converter, Gas Yes, #6D Gas Yes, #6D Gas ---
Full Size Billet Lock-Up Converter, Gas Extra Extra Yes, #6V
Billet 10 Inch Lock-Up Converter, Gas Extra Extra Yes, #6B
Triple Clutch Billet Torque Converter, Diesel / V10. Add $165.00 for Billet Stator Extra Yes, #8DXX Yes, #8DXX
Billet Lock-Up Torque Converter, Diesel Extra --- ---
Gas Horse Power Rating without Nitrous or Supercharger 500 700 with #6B Converter 800+ Gas, Over 1000 Torque on Diesel
All Three OEM 48RE 6 Pinion Planet Gears --- --- Yes
Steel Front Planet --- Yes N/A
48RE Sun Gear and Shell --- --- Yes
Sonnax or TCS Hard Input Shaft. You must have a hard shaft if you have a 3 clutch converter. Extra with 3 Clutch Diesel Converter Yes with Diesel / Extra on Gas Yes
10 Performance Alto Red Eagle Overdrive Direct Clutches Diesel / V10 Diesel / V10 Yes
7 Overdrive Clutches, 20% more clutch apply area than a 48RE --- --- Yes
5 Forward Clutches, 25% more clutch apply area than a 48RE --- --- Yes
22% more total clutch apply area than a 47RE transmission --- --- Yes
2003 Up 48RE Internal Parts, Gas or Diesel --- Some Yes
Level 5 Only - Big Daddy Direct Drum --- --- Yes
Level 5 Only - Hard Intermediate Shaft --- --- Yes

Dodge RWD Overdrive Instructions

Dodge 518 Conversion

This is how to replace your three speed transmission with a 1995 back A518 overdrive transmission with a three wire connector (gas). A 518 transmission has a 31% overdrive and will produce a 30 to 40% increase in gas mileage on the road over a three speed transmission. Remember overdrive is only 3rd gear high range anyway. There are two wire 518 transmissions out there, these have a non-lock-up torque converter. With this three wire setup you have a four speed transmission plus a torque converter lock-up feature. The extra gear is 3rd high range. We've been asked this question for years, so I decided to put it down in black and white. What we're actually going to do here is control the overdrive and torque converter lock-up normally controlled by the computer using one vacuum and two oil pressure switch. Instead of using an electronic speed sensor and throttle position sensor we will use a mechanical / hydraulic / electronic speed sensor and a vacuum / electronic throttle position sensor. This will be accomplished with the use of three GM parts and some trick wiring. The Chevy and Ford guys make the swap to overdrive all the time, it's time for the Dodge people to have the same option. Lets say you drive an average of 400 highway miles per week, at that rate you could save as much as $1000.00 per year on gas. This can be made to work with a diesel motor also with or without a vacuum pump and vacuum regulator.


#1. The center wire on the transmission is the hot wire and the two other wires are ground wires for overdrive and the lock-up torque converter. The front wire is the overdrive ground and the rear wire is the torque converter lock-up ground. You can get a three wire female connector from a junk yard or buy one from us.

#2. Run a 12 volt fused wire that turns on and off with the key to the vacuum switch, then to the center wire on the transmission connector. This is a normally open vacuum switch that takes 7 inches or more of vacuum to shift into overdrive and lock-up the torque converter and 3 inches or less of vacuum to down shift and unlock the torque converter. Lets say you're in overdrive going 54 miles per hour at very light throttle, when you press on the throttle and the vacuum drops below 3 inches the transmission will immediately shift back to 3rd gear low range without lock-up or even a lower gear depending on the throttle position.

#3. At the governor pressure tap on the transmission install a tee fitting for two oil pressure switches. Say a 44 PSI oil pressure switch for overdrive and a 52 PSI oil pressure switch for the torque converter lock-up. Or any other combination of switches you may want. At light throttle the transmission will shift into overdrive at 44 MPH and the torque converter will lock-up at 52 MPH. The pressure switches go on the outside of the transmission case in the governor pressure port. It's located on the right side, at the upper rear of the main transmission case. The figures on the pressure switch will only be correct if you have a stock tire size and rear end ratio.

#4. Run a wire from the front pin on the transmission connector to the 44 PSI oil pressure switch and a second wire from the rear pin on the transmission connector to the 52 PSI oil pressure switch. Now at 52 MPH when you step on the gas the transmission will shift back to third gear and the torque converter will unlock at the same time. It can't get any easier than this.

#5. Install a toggle switch in the overdrive ground wire. When the switch is turned off you will have 1st, 2nd and 3rd low range, exactly like a 727 transmission with the same ratios. When the switch is turned on you will have 1st, 2nd  and 3rd gear low range plus 3rd high range. When the toggle switch is on the transmission will immediately shift into overdrive at light throttle over 44 miles per hour whenever it’s in drive range on the gear selector. Once in overdrive the transmission will not come out of overdrive until the overdrive solenoid is turned off, or the vehicle speed goes below 44 miles per hour, or the vacuum drops below 3 inches. The only electronic parts on a 518 transmission are the overdrive and torque converter lock-up solenoids.

NOTE: People make this swap all the time, but I've never heard of anyone doing it correctly. They drive down the street flipping a toggle switch on and off at every stop. This setup works automatically.

NOTE: The way governor pressure works is 1 pound of pressure per square inch equals 1 mile per hour unless someone has changed the tire size, or rear end ratio, or governor springs and weights. The vacuum switch acts as a throttle position sensor and the oil pressure switch acts as a speed sensor.

NOTE: Use a lock-up type torque converter if possible, this could get you as much as 5% better gas mileage and the transmission will run much cooler. Running cooler will make the transmission last longer.

NOTE: You can also run the torque converter ground wire through the brake switch if needed.


The #4 tap is the correct one.


Throttle Valve Adjustment

#6. A 518 transmission has a throttle valve cable (pressure cable), it must be hooked up and adjusted correctly. You can get the cable and brackets from a junk yard. If you have a 727 transmission now this linkage may work. The correct adjustment on the T V cable or linkage is minimum throttle pressure at minimum throttle. In other words no slack in the cable at idle and it must start to pull immediately off of idle.


Other Modifications

#7. When going from a 727 transmission to a 518 transmission the driveshaft will need to be cut about 3 and 1/2 inches. The swap may require some driveshaft tunnel modification on some cars. You will have to fabricate a new crossmember using the old crossmember ends because the transmission mount is lower on a 518 transmission than a 727 transmission. The stock Dodge truck mount is very tall, some extra room can be gained by using a biscuit-type Camaro or Mustang mount. See pictures below. In the 1st picture notice the 518 transmission has a larger tail area. The second picture is the crossmember ends cut off ready to be reused. In the 3rd picture notice the transmission mount area has been lowered.

     

Click here for 727 to 518 swap wiring diagram. 727 to 518 Swap

HPIM1128.JPG (927525 bytes)  HPIM1129.JPG (618483 bytes)  HPIM1131.JPG (628944 bytes)

The 3 above pictures are a 1970 Dodge Dart Swinger A-Body.

Incase you haven't noticed Chrysler Cars are the hottest thing going on the market as witnessed by the 1970 Plymouth Hemi Cuda that sold for $2,000,000.00 at the Barrett-Jackson auction on 1-21-2006.


 

 

 

 

 

 

 

 

 

 

#79TV. 518 / 618 Lokar Throttle Valve Cable. Cost $76.00

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PATC 727 to 518 Conversion Kit

#727518. With these four parts you can convert your 727 transmission to a 518 overdrive transmission with locking torque converter. Lets say you drive an average of 400 highway miles per week, at that rate you could save as much as $1000.00 per year on gas, not to mention the 31% reduction in RPM. Your new 518 will have automatic shifts into overdrive and lock-up, no toggle switch needed. Now with adjustable vacuum switch. The instructions are at the bottom of this page. (11-25-06. I just saw this kit on the Internet by the copy cat competition for $1654.00.) Cost $85.00

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Overdrive
Converter Lock-Up

 

 

 

 

 

 

 

 

 

 

PATC 727 to 518 Deluxe Conversion Kit

#727518DK. This is the fully electronic no vacuum needed deluxe kit for the 727 to 518 swap. Made for diesels without vacuum and big cam gas motors with low vacuum. Comes with two governor speed sensors, throttle position sensor and a shift solenoid pigtail. What this kit does is makes a 518 transmission shift without a computer. Can be made for a non-lock-up torque converter for $18.00 less. Cost $325.00

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Overdrive
Converter Lock-Up

727 to 518 Video Installation Instructions, Click Here

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

#79Y. Dodge Slip Yoke. Fits 1990 to 1995 A518 transmissions. 6 inch shaft by 1-5/8 inch. 1-9/16 cross by 1-1/8 cap. Cost $135.00

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_DSC2468.JPG (241570 bytes) #79M2. 518 / 618 two wire Pigtail connector for overdrive. This part has never been available before. Cost $35.00

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#79M. 518, three wire Pigtail connector for overdrive and lock-up. Cost $20.00

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HPIM1490.JPG (15316 bytes)

 

 

 

 

#79CLF. Early type GAS cooling line fittings. Cost Each $6.50

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518 Gear Ratios Chart
Gear Ratios First Second Third
518 Low Range / same as 727 2.45 to 1 1.45 to 1 1 to 1
518 High Range 2.45 to 1 1.45 to 1 1 to 1 and .69 to 1 =  3rd OD

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Gear Ratios First Second Third Forth
30RH / 904 2.74 1.54 1.00   ---------
32RH / 999 2.74 1.54 1.00   ---------
36RH / 727 2.45 1.45 1.00   ---------
42RE / 42RH 2.74 1.54 1.00 0.69
500 2.74 1.54 1.00 0.69
518 / 618 2.45 1.45 1.00 0.69
46RE / 46RH 2.45 1.45 1.00 0.69
47RE / 47RH / 48RE 2.45 1.45 1.00 0.69