THIS SECTION IS COMPILED FROM THE ADVANCE ADAPTERS CATALOG. THE PAPER CATALOG IS ALSO AVAILABLE AT TLC
FORD TRANSMISSION INFORMATION
(AUTOMATICS)
This section covers stock Ford transmissions, standard modifications, gear ratios and bolt patterns. The general information provided will apply to most conversions in this book.
C4: This 3 speed transmission was used in Ford cars & trucks from 1964 to 1981. We recommend obtaining a 1970 & newer transmission for conversions. The transmission case length is 11.180², and with the bellhousing measures 17.00². This transmission was used up against small block Ford engines. The adapters we manufacture will normally require the installation of a new output shaft. This is the most popular transmission when converting to a Ford engine. The 1st gear ratio is 2.46:1; 2nd 1.46:1, and a 1:1 3rd gear ratio.
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C5: This transmission was used from 1982 to 1986 in both the Rangers and F-series pickups. The case length and gear ratio is the same as the C4, except the oil pan on the C5 as a hump in it; the oil pan for the C4 is flat. The adapters that we manufacture for the C4 can also be used with this transmission.
C6: The C6 is a Ford Heavy Duty 3 speed automatic. The gear ratio is also identical to the C4 transmission. The C6 has a case length of 20², which includes the bellhousing. This transmission is used up to all three Ford block bolt patterns. The bellhousing and case are intrical (one piece); therefore, the C6 has 3 different casings. This transmission was used in vehicles 1968 to 1979.
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AOD: This Ford automatic overdrive 4 speed is drastically different in appearance than any of the C-series transmissions. This integral (one piece) transmission was introduced in 1980, and found in the F-series pickups behind small blocks. The transfer case adapters we manufacture for this transmission require the installation of a new output shaft. The AOD was used up until 1993, in cars & trucks.
The 1980-87 (early) transmission main shaft was different than the 1988 & up (late) transmission main shaft. These shafts use different oiling holes and, if interchanged, could cause improper shifting or transmission damage. This transmission is becoming very popular for many conversions. We offer adapters for most early and late transmission applications. The transmission A.O.L. is 20.50² long. It has a 1st gear ratio of 2.40:1; 2nd 1.47:1; 3rd 1:1, and the 4th gear is a 33% overdrive.
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AODE (4R70W): This transmission is similar to the above AOD transmission and was used in rear wheel drive vehicles starting in 1991. The adapter housing for the AOD transmission will fit the AODE; however, the output shaft of the AODE is different, with reference to the oiling holes. Since the AODE does not have a governor, the oil supply line must be pugged. Our kits for the AOD can be used on the AODE transmission provided that you obtain a few components from Ford. The necessary components, on average, are approximately $9.00. For Ford components are as follows:
Ford # 391-231S Plug Pin
Ford # F2VY7B176-A Sleeve to keep the pin in the shaft
Ford # 388104-S2 Governor snap ring to hold the sleeve on
E4ODE: This Ford automatic was used only in trucks from 1989 to current models. In 1999, the name of this transmission was changed to 4R100.
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FORD TRANSMISSION INFORMATION
(MANUALS)
Ford manual transmissions can be classified into two groups. They are either Car or Truck style transmissions. The car style transmissions used in Ford vehicles usually have a higher 1st gear ratio. They are considered light duty compared to a truck tranny but built strong enough to handle V8 horsepower. The truck style transmissions normally have a lower 1st gear (non-synchronized). These transmissions are built to withstand the extreme 4WD conditions.
T18 (Truck style): This transmission, found in 1965 to 1985 Ford pickups, is identified by a case length of 11.875². The 1st gear ratio is 6.32:1; 2nd 3.09:1; 3rd 1.69:1, and a 1:1 4th gear ratio. The adapters we manufacture for this transmission come with a new main shaft. This will usually allow the overall length of this transmission to remain ideal for most short wheel base vehicles. Ford was not the only manufacturer who used the T18 transmission. When searching for a T18 in salvage yards, make sure the bellhousing bolt pattern has a dimension of approximately 8-1/2² across the top, and 6-1/4² top-to-bottom. The input shaft stickout should be approximately 6-1/2². It is easier to adapt to the Ford T18 than to the Jeep or Scout T18.
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T19 (Truck style): This transmission looks identical to the Ford T18, and the case length is the same. The 1st gear ratio is 5.11:1 1st; 2nd 3.03:1; 3rd 1.79:1, and 1:1 4th gear ratio. These transmissions were used in Ford pickups 1974-88. The first gear on this transmission is synchronized, which is the biggest advantage over the T18. The adapter kits we manufacture for this transmission require a new main shaft. This shaft looks identical to the Ford T18, except it has a snap ring groove for the 1st gear synchronizer.
NP435 (Ford truck style): We manufacture many adapters for the Ford version of the NP435. These adapters do not work on the Chevy or Dodge NP435. This transmission has a case length of 10.875². The 1st gear ratio is 6.69:1; 2nd 3.34:1; 3rd 1.66:1, and a 1:1 4th gear ratio. This transmission was used in Ford pickups 1969 to 1979. It is easily identified by an aluminum shift cover. This transmission is available with two front input shaft lengths. The 6-1/2² input shaft stickout length is the ideal version to look for.
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T & C 4 Speed: This transmission is mainly found in cars from 1967 to 1982. The case length is 10-1/4². The 1st gear ratio is 2.78:1; 2nd 2.92:1; 3rd 1.35:1, and a 1:1 4th gear ratio. This transmission is popular for both the early Broncos & Jeeps. The shifting mechanism is external. Shifter brackets and a shifter rod kit is normally required. This transmission is sometimes referred to as a T & C or 10 bolt top cover.
T & C 4 Speed O.D.: This transmission is used in both car and truck applications. The case length on this transmission is 10-1/4². The 1st gear ratio is 3.29:1; 2nd 1.84:1; 3rd 1:1, with an 20% overdrive. Ford used this transmission from 1978 to 1989. When used in a car application, this transmission resembled the standard T & C 4 speed. The shifting mechanism is external, and a shifter bracket and rods will be required. When used in a truck application, this transmission used a larger rear output shaft bearing and was top shifted. The kits we offer require the installation of a new main output shaft. We manufacture kits for both the truck and car transmissions. On some vehicles, such as vans & early car applications, we are unable to adapt. The following parts can be purchased to utilized the car type tranny adapter on a truck transmission.
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P/N 761083 - Snap ring spacer P/N 716453 - Snap ring
P/N 716307 - Bearing P/N 716239 - Thrust washer
WC T5: The T5 transmission was used in Ford Mustangs from 1985 to 1995, and the Camaro & Firebird from 1989 to mid-1990s. These transmissions were designed to handle the horsepower and torque of the small block engine. When purchasing a T5, be aware that both Ford & Chevy used two different input shaft lengths. Therefore, it is imperative that the stock bellhousing be used for proper pilot bushing / clutch engagement. The Ford T5 also used various input shaft pilot tip diameters. You must verify that you have the correct pilot bushing for your transmission. In addition, the bellhousing has a slight rotation on the transmission bolt pattern. This can cause problems with the transmission crossmember. The Mustang T5 bellhousing only accepts a mechanical type clutch linkage. When using this bellhousing, you must fabricate a slave cylinder bracket.
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OVERVIEW / GENERAL INFORMATION
ENGINE INFORMATION
GM TRANSMISSIONS
TLC BELLHOUSING ADAPTERS
TLC ROCK CRAWLING OPTIONS
TLC T/C ADAPTER CHART
