ETE REMAN Blog

Prepare the AOD Transmission in Your Classic Saleen Mustang for Autocross

Posted by on Friday, July 25th, 2014

The AOD was Ford Motor Corporations very first overdrive automatic transmission.  It was designed to give Ford vehicles better gas mileage after the 1970’s oil embargos.  It took the place of the C4, C5 and light duty versions of the FMX transmission. When it was introduced in 1980, it remained in the Ford lineup for a very long time– finally being phased out of use at the end of the 1993 model year.  It was used in many Ford vehicles, including the LTD, the Thunderbird, the Econoline van, the Crown Victoria, the Bronco and the many versions of the F-series pickup trucks.  It was also used in the Saleen version of the Mustang.

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Don’t Let the ZF 8HP Transmission in Your Audi A5 Leave You Stranded

Posted by on Thursday, July 24th, 2014

The 8HP is an eight-speed automatic transmission built by the ZF Friedrichshafen Company. The 8HP comes in a number of varieties, including the 8HP30, the 8HP45, the 8HP55, the 8HP70 and the 8HP90. The weakest of the varieties, the 8HP30, can handle up to 300 N-m of torque. The strongest–the 8HP90– can handle an unbelievable 900 N-m of torque.  The 8HP was designed to replace the 6HP transmission–a six-speed automatic– mainly to obtain better gas mileage in the vehicles it was used in. This transmission first went into production in 2008 and remains in production today.  The 8HP has a very steep 4.69:1 ratio first gear (excellent for quick take-offs), and a very generous overdrive ratio of 0.66:1 (great for maximizing gas mileage). A different version of the 8HP can be found in a wide variety of vehicles, including the Audi A4, the Bentley Mulsanne, the BMW 3 series, the Chrysler 300, the Dodge Durango, the Jaguar XF, the Lancia Thema, and the stellar Audi A5.

 

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Put a Racing C4 Transmission in a Big Block 1973 Mach I Mustang

Posted by on Wednesday, July 23rd, 2014

The C4 is a medium duty 3-speed automatic transmission designed and built by Ford. It is designed for vehicles with the motor mount up front in a longitudinal position and rear wheel drive. Over the years there have been three basic designs of this transmission, with the variation being the number of spline on the input and output shafts. They are as follows: 1964 – 1969: 24 /24, 1970: 26 / 26 and 1971 – 1979: 26 / 25. This transmission first went into production back in 1964 and remained in the lineup all the way through 1979. The C4 was eventually replaced by the C5 transmission, which is really nothing more than a C4 with a lockup torque converter.  The C4 could be found in a wide variety of vehicles (with mostly straight 6 and small V8 engines), including the Bronco, the F-series, the Fairlane, the Fairmont, the Falcon, the Granada, the Ranchero, the Thunderbird and the Maverick.

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Don’t Let Excessive Heat Destroy The 4L80E Transmission In Your Hummer H1

Posted by on Tuesday, July 22nd, 2014

The 4L80E is a four speed automatic overdrive transmission developed and produced by General Motors.  It is the predecessor to the TH400 three speed transmission, and in fact shares some component in common with this transmission. The 4L80E comes from a family of transmission that includes the 4L85E, a slightly heavier duty version of the 4L80E. The 4L80E is a heavy duty transmission capable of handling up to 440 lb-ft of torque.  It comes with a fairly steep first gear ratio of 2.48:1 and a final overdrive gear ratio of 0.75:1 (25% overdriven). This transmission was first introduced to the lineup in 1991 and was available as recently as 2013. The 4L80E automatic transmission could be found in a variety of vehicles, including the Chevrolet Silverado 2500HD / 3500HD, the Sierra 2500HD / 3500HD, the Avalanche ¾ ton, the Rolls Royce Silver Spur, the Bentley Turbo R, The Jaguar XJR and the Aston Martin DB7. It could also be found in the Hummer H1.

 

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Racing With A TH400 Transmission In A 1970 SS Chevelle

Posted by on Monday, July 21st, 2014

The Th400 is a heavy duty three-speed automatic transmission designed and built by General Motors. It comes from a family of transmissions that include the THM400, the THM375, the 3L80 and the 3L80HD. The TH400 was first put into production back in 1964 and was last used in President Reagan’s limousine in 1984. This transmission came with a 2.48:1 ratio first gear and a 1:1 ratio final 3rd gear. Although strong, it was not great for gas mileage. The TH400 could be found in many performance vehicles including the El Camino, the Corvette, the Monte Carlo SS, the Trans Am and the Oldsmobile 442. It could also be found in the 1970 Chevelle SS.

 

The 1970 Chevelle SS came with the TH400 automatic transmission

Source: americanclassiccars.com

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Prevent Damage to the 5HP18 Transmission in Your BMW 325i When Racing

Posted by on Friday, July 18th, 2014

The 5HP18 is a five-speed automatic transmission built by the German company ZF Friedrichshafen. It is designed for use with engines mounted in a longitudinal position and rear-wheel drive. It comes from a large family of transmissions that include the 5HP19, the 5HP24, and the 5HP30. This transmission was first used in 1992 and was quickly phased out of production in 1999. It could be found in many popular BMW vehicles, including the E32, the E34, the E36, and the E39. It was also used I the BMW 325i.

The BMW 325i came with the 5HP18 automatic transmission.

The BMW 325i came with the 5HP18 automatic transmission.

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Make Your 1978 Z28 Quicker with Modifications to the TH350 Transmission

Posted by on Thursday, July 17th, 2014

The TH350 is a medium-duty, three-speed automatic transmission designed and produced by General Motors. It was designed to replace the two-speed Powerglide transmission. The TH350 was intended to be used in rear-wheel drive vehicles but was also available for four-wheel drive vehicles when used in conjunction with a transfer case. It was first put into use in a production vehicle in 1969 and remained an option through the end of the 1984 model year. 1980 and newer TH350 transmissions were equipped with a lock-up torque converter. The TH350 was used widely throughout the General Motors lineup and could be found in the likes of the Corvette, the Blazer, the Suburban, the Trans Am, the Cutlass, the Vega, the Nova, and the El Camino. It was also found in the Z28.

The Z28 (Source: dankoreproductions.com)

The Z28 came equipped with the TH350 automatic transmission.

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Trick Out the A727 Transmission in Your 440 Six Pack Challenger

Posted by on Wednesday, July 16th, 2014

The A727 is a three-speed automatic transmission made by the Chrysler Corporation. It is the stronger of the two transmissions (the other being the A904) built during the muscle car area. The first A727 transmissions built up through 1961 where made of heavy cast iron and used push buttons to select the gears instead of the now more commonly found shifters. The modern version of the A727 transmission was first put into use in 1962 and remained in the Chrysler lineup through the end of the 1978 model year. This transmission was extremely popular in muscles cars, and could be found in the Dodge Charger, the Super Bee, and the Dart GTS, along with the Plymouth Baracuda, the Road Runner, and the Super Bird. It was also available in the 440 Six Pack-equipped Dodge Challenger.

Source: blingcheese.com

The 440 Six Pack Challenger came with the A727 transmission.

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Towing Jet Skis With Your Durango? How To Take Care of Its 545RFE Transmission

Posted by on Tuesday, July 15th, 2014

The 545RFE is a five-speed automatic transmission built by the Chrysler Corporation. It was designed to replace the older four-speed 45RFE automatic transmission. The 545RE has a 3:1 first gear ratio and a 0.75:1 (25 percent overdrive) fifth gear which is great for increasing a vehicle’s mileage.  It comes with a unique (and strong) three planetary gear set, compared to most other transmissions that only include two.  The 545RFE was first used in 2001, and believe it or not, is still in use today.  This transmission was used in a variety of vehicles, including the Dodge Ram pickup, the Power Wagon and the Dakota, and was also used in the Jeep Grand Cherokee, the Liberty, the Commander and the Wrangler. In addition it could be found in the Dodge Durango.

 

The Dodge Duragno came with the 5454RFE transmission

The Dodge Durango is great for towing, but you have to take care of the transmission. Source: betterparts.org

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Great Accessories for the 4L85 Transmission in Your Chevy Suburban

Posted by on Monday, July 14th, 2014

The 4L85 is a very heavy-duty, four-speed automatic transmission made by Chevrolet and GMC. It shares many parts in common with its slightly weaker cousin, the 4L80E transmission. Both transmissions are based on the original TH400 three-speed transmission, with the addition of the overdrive gear and full electronically-controlled valve body. The 4L85 transmission is designed to handle up to 460 lb./ft. of torque in vehicles weighing in at up to 18,000 lbs. It has a nice, low gear ratio of 2.48:1, which really aids in takeoffs from a standstill, while still gaining a mileage advantage through the use of a 0.75 (25%) overdrive gear ratio. This transmission was built between 1991 and 2006. The 4L85 was used in a number of vehicles, including the Chevrolet Express van (only those equipped with the Duramax diesel engine), the Avalanche hybrid pickup/SUV, the GMC Yukon XL, and the Savanna van. It was also used in the Chevy Suburban.

Suburban (Wiki)

The Suburban came with the 4L85 automatic transmission.

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