How do you id a c6

[shlb69]

I have a c6 with a e on the servo. How dod I id which trans is actually is?

[68blk500c]

Unless the id tag is still attached, it will be guessing.

Ford's MPC does list tag information by application; some information regarding servo id, as well.

Main cases have different casting characteristics, as do tail shafts, depending on application.  Not identical across the board. 

[Royce Peterson]

There will be a VIN stamped on top of the transmission at the rear just forward of where the tailshaft housing attaches. You can get a Marti Report using the VIN if you want to but normally you can also tell which plant the car or truck was built at. If the E servo is original you know it is a low performance unit but the other parts may still have value.

I have a c6 with a e on the servo. How dod I id which trans is actually is?

[shlb69]

Where would tag be as I didn't see one

[KR500]

Where would tag be as I didn't see one

The tag would be attached to one of the servo cover bolts

[shlb69]

Can't see a tag just a e on the servo

[Royce Peterson]

What's the VIN stamped on top of the case? It's not on a tag.

Can't see a tag just a e on the servo

[propayne]

Here is a photo of a C6 with its tag.

This is from a 1968 Cougar with a S code 390 4v.

- Phillip

[rbarkley]

Here is what I have in my 67 GT 500 Automatic.

[rbarkley]

missed the tag shot

[shlb69]

Here is a photo

[Royce Peterson]

What's the VIN number stamped on top of the transmission case just forward of the tail shaft? That will tell you precisely which car it came from.

Here is a photo

[shlb69]

My other c 6 has a d. What is the difference between a d or e and what would have been the application

[Royce Peterson]

The biggest servo is the R servo. All the other letters are smaller. All 428CJ / SCJ applications used the R servo. The 1967 - 68 Shelby GT500 used the H servo.

I do not have any information on an E servo. I would need to look at the case to see the part number on the case to possibly determine what it might be for. It's not a performance application.

Here they are from weakest to strongest:

N 1.93 2.92 Molded piston
S 2.00 2.86 Molded piston
G 2.04 3.02 O-rings
J 2.07 2.69 O-rings
L 2.07 2.98 Molded piston
D 2.08 2.98 O-rings
P 2.10 2.86 Molded Piston
H 2.34 3.02 O-rings
R 2.48 3.50 O-rings

The first year for the C6 was 1966. All 1968 and newer C6 transmissions have a VIN stamped on top of the case which makes identification super easy. You need to tell us the casting number if there is not a VIN.

My other c 6 has a d. What is the difference between a d or e and what would have been the application

[shlb69]

Thank you