How to Identify a 727 Transmissionby Robert Bayly
The Chrysler Corp. 727 TorqueFlite automatic transmission was introduced in 1962 and used until the late 1990s. The 727 was mainly used in cars and trucks. American Motors and England's Jensen Interceptor also used the 727. Extremely strong, the 727 is used in many high-performance applications. A stock 727 will easily handle up to 450 horsepower. There is no shortage of performance parts, and complete high-performance units are available from many suppliers.
Park the vehicle on flat pavement. Set the parking brake. Raise the front end and support with jack stands.
Look at the transmission pan. On the 727 transmission the sides are straight. The driver's side angles to the front of the pan. The passenger side has a regular 90-degree corner. The rear of the pan has a bulge on the passenger's side.
Measure the pan with a measuring tape. The 727 transmission has an overall length of 15 1/2 inches. Overall width is 11 7/8 inches.
- To eliminate the possibility of it being a 904 transmission, the 904's pan is square with the front driver's side corner cut off, and there is no bulge at the rear of the pan.
Things You'll Need
- Jack stands
- Tape measure
Robert Bayly, based in Apple Valley, California, began writing in 2010, his "how to" articles can be found on eHow. With more than 15 years in the auto industry, Bayly has been an auto and diesel mechanic, service writer and parts manager. He received certificates from Pontiac (parts system), Cat Diesel (engine service), Saab and Fiat (parts- warranty system).