Friday, May 9, 2014
Ford T5 Specs
The T-5 is a five-speed automotive transmission manufactured by Transmissions Technologies Corporations (TREMEC) for Ford Motor Company. The transmission is used in passenger cars, SUVs and light trucks. It was first introduced in 1981 for use in the AMC Spirit/Concord. The two types of T-5 transmissions are World Class and Non World Class. Today the transmission is used in the Ford Mustang GT. It is also sold as an aftermarket part for use in classic car restoration.
Weight
The weight of the transmission is 75 pounds for both cars and light trucks. The transmission housings are made of die-cast aluminum in order to reduce the total weight.
Gear Ratio
The gear ratio for T-5 car transmissions can range from 2.95-to-1 to 3.75-to-1 for first gear, from 1.94-to-1 to 2.19-to-1 for second gear and from 1.29-to-1 to 1.41-to-1 for third gear. It is 1-to-1 for all models for fourth gear, and ranges from .08-to-1 to 0.72-to-1 for fifth gear and from 2.76-to-1 to 3.53-to-1 in reverse. For light trucks, the gear ratio can range from 3.35-to-1 to 4.03-to-1 for first gear, 1.99-to-1 to 2.37-to-1 for second gear and 1.33-to-1 to 1.49-to-1 for third gear. It is 1-to-1 for all models for fourth gear, and ranges from 72-to-1 to .86-to-1 for fifth gear and 3.71-to-1 to 3.76-to-1 for reverse.
Lower Counter Gears
The lower counter gears for the Non World Class transmissions produced in 1983 spin on cylindrical bearings that are in a straight configuration. These bearings have a thrust washer for support when they are under load. The lower counter gears of the 1985 Word Class transmissions have tapered bearings. These bearings replace the thrust washer of the earlier version.
Synchronizer Rings
Non World Class T-5 transmissions have solid bronze synchronizer rings. These rings are different sizes than the rings in the World Class T-5. On the World Class transmission, the synchronizer rings on the main shaft are fiber-lined steel. This material improved the friction surface of the rings, which slows the gear quickly, allowing for smoother shifts. The fifth gear ring is bronze. From 1990 to 1993, the ring linings on the V8 T-5 were changed to carbon fiber. This improvement in surface friction resulted in higher rpm shifts.
Other Specifications
The World Class T-5 was introduced in 1993. Its maximum horsepower is 450 under non-racing conditions. Based on 100,000 mile usage, the torque rating is 330 foot-pounds.
