Automatic Transmissions The easiest method of GM automatic transmission identification is to examine the transmission pan. New transmission designs came with new, unique pan shapes, and the general shape of the pan often paints a fairly clear picture of which automatic transmission you are dealing with.
How do I know what Chevy transmission I have?
Chevrolet transmissions can be manual or automatic. Automatic transmission on a Chevy can be identified in one of two ways: You can look at the size of the pan on the transmission or you can search for the identification number that has been stamped somewhere on the casing.
How do I identify a GM 700R4 transmission?
2. Identification Tag
- The 1st number is the year model of the transmission.
- The next 2 or 3 letters identify the model of the transmission.
- If you find 2 letters, the transmission is made between 1982-1985.
- Wirings = 4L60.
- Aux TV Cable = 700r4.
- Red = Okay.
What years were the 4L60E used?
Designed for longitudinal engine configurations, the series includes 4 forward gears and 1 reverse gear. The 4L60E is the electronically commanded evolution of the Turbo-Hydramatic 700R4, originally produced in 1982….GM 4L60-E transmission.
| 4L60E/4L65E | |
|---|---|
| Overview | |
| Manufacturer | General Motors |
| Production | 1992–2013 |
| Body and chassis |
How do I find my transmission ID number?
Open the driver’s side door and find the white card on the side of the door that is filled with small black lettering. This card contains specific details about the year the car was made, its transmission, engine specifications and other details. Underneath or beside the “TR” symbol will be a number code.
How do I know if I have a 4L60E or 4L65E?
The two transmissions cannot be differentiated from the outside. The 4L65E shares the same exterior parts but have stronger internals such as 5 pinion planets compared to 4 in the 4L60E. 4L60E uses a 6.5″ depth bell with 6 bolts for non gen 3 LS applications and a 7″ depth bell with 7 bolts for LS applications.
How can I tell if I have a 700R4 or 4L60E?
You can’t tell the difference between a 700R4 and a 4L60E by the oil pan as they are nearly the same. If the transmission has a large 18-pin electronic connector above the passenger side pan rail, it’s a 4L60E, as seen here. If it has a cable connection near the cooler lines on the passenger’s side, that’s a 700R4.
Where are the numbers on a 700 R4 transmission?
All 700R4s have a long code numbe stamped into the case in the rear – just about the tin oil pan. The number tells you the month and year the trans was built along with the version code. The big cast-in MD-8 is just the RPO code and tells you nothing specific.
How can you tell the difference between a 4L60E and a 4L60?
The rear output housing is configured with a six-bolt pattern in late model 4L60E transmissions. The 4L60 transmission is configured with a four-bolt pattern. The bolt pattern is not a guaranteed distinction, however, as early 4L60E transmissions, manufactured from 1992 through 1997, also have a four-bolt pattern.
