The Ford C6 is a heavy-duty automatic transmission built by Ford Motor Company between 1966 and 1996. It was marketed as the "SelectShift Cruise-O-Matic". Compared to its predecessor MX transmission, the C6 offered lower weight, less complexity, less parasitic power loss, and greater torque capacity for larger engines. It did this without exceeding the packaging dimensions of the MX. These design goals were in line with those of the C4 for smaller engines.
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Design
To cut down on weight and cost, the C6 featured a simple, three speed Simpson planetary gearset as well as over 10 lb (4.5 kg) of powdered metal. To aid in shift quality and long term durability, it was the first automatic transmission designed to use the Borg-Warner flexible shift band. It had disc clutch plates instead of bands on the low and reverse gears. It got new composite plates and valving. This gave it the capability to handle 475 ft-lb of torque.
The C6 was used in trucks and cars with larger engines. Five different bell housing varieties exist for use with various Ford engine families:
- The Windsor pattern was used on the 300 I6, the Ford Windsor engines and the 351 Cleveland.
- The Cleveland pattern was used on the 351M and 400 versions of the Ford Cleveland engines and all of the Ford "385" engines.
- The FE pattern was used on the FE engines
- The rare 66 - 68 Lincoln MEL 462 pattern which was used on 66 - 68 Lincoln Continentals with the 462 engine and also on 68 - 70 Lincoln Continentals with the 460. This pattern rounds off on the passenger side to clear the heat/AC box on the 66 - 70 Lincoln firewall.
- Diesel pattern. This was similar to the FE/"385" pattern but the two are not interchangeable.
The transmission is very popular in the sport of drag racing today, with units equipped with manual valve bodies and transbrakes, some of which are air shifted. It is also widely used in off-road applications due to its reputation of being nearly indestructible. It does, however, have a reputation of greatly reducing performance as well as fuel mileage, due to the amount of power it requires to operate.
Applications:
- 1978-1991 Ford Bronco
- 1967-1996 Ford F-Series
- 1964-1970 Ford Fairlane
- 1966-1974 Ford Galaxie
- 1966-1980 Ford LTD
- 1977-1979 Ford LTD II
- 1966-1979 Ford Ranchero
- 1966-1979 Ford Thunderbird
- 1968-1976 Ford Torino
- 1966-1979 Lincolns
- 1966-1969 Mercury Comet
- 1967-1973 Ford Mustang
- 1967-1978 Mercury Cougar
- 1966-1972 Mercury Meteor
- 1968-1976 Mercury Montego
- 1968-1974 Mercury Monterey
- 1977 Mustang Cobra 2
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E4OD
The C6 core components were used to build Ford's first electronically controlled automatic transmission. The E4OD was introduced in 1989 and used in both light and heavy duty applications. The E4OD has four forward speeds and electronic shift controls replacing the hydraulic governor control mechanism of the C6.
Applications:
- 1990-1996 Ford Bronco
- 1989-1998 Ford E-Series
- 1997-1998 Ford Expedition
- 1989-1998 Ford F-Series
- 1993-1995 SVT Lightning
4R100
The E4OD was updated in 1998 and this new transmission was the last rendition of the C6. It was largely the same as the E4OD, but with some changes to internal components to address durability concerns when put behind the ever increasingly powerful Powerstroke Diesel Engine. In 1999 it was fitted with a PTO for auxiliary equipment attached to heavy duty trucks. To follow Ford's new naming schemes for its other transmissions, Ford renamed the E4OD the 4R100.
Applications:
- 1999-2004 Ford Lightning (F-150 SVT)
- 2002-2003 Ford F-150 Harley-Davidson Edition
- 1999-2003 Ford F-150 7700 Series (LEV - Low Emissions Vehicles only)
- 1999-2003 Ford Super Duty
- 1999-2003 Ford Expedition (with 5.4 V-8)
- 2000-2003 Ford Excursion
- 1997-2004 Ford E-Series
Source of the article : Wikipedia
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