Author Topic: How do you id a c6  (Read 3971 times)

shlb69

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How do you id a c6
« on: April 04, 2020, 12:18:16 PM »
I have a c6 with a e on the servo. How dod I id which trans is actually is?

68blk500c

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Re: How do you id a c6
« Reply #1 on: April 04, 2020, 12:53:45 PM »
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

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Re: How do you id a c6
« Reply #2 on: April 04, 2020, 01:23:02 PM »
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?
1968 Cougar XR-7 GT-E 427 Side Oiler C6 3.50 Detroit Locker
1968 1/2 Cougar XR-7 428CJ Ram Air C6 3.91 Traction Lock

shlb69

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Re: How do you id a c6
« Reply #3 on: April 04, 2020, 06:06:06 PM »
Where would tag be as I didn’t see one

KR500

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Re: How do you id a c6
« Reply #4 on: April 04, 2020, 06:20:29 PM »
Where would tag be as I didn’t see one
The tag would be attached to one of the servo cover bolts
Rodney Harrold,Ohio SAAC Rep,SAAC 68 Shelby Concourse Judge,68 GT500KR 02267

shlb69

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Re: How do you id a c6
« Reply #5 on: April 04, 2020, 07:42:37 PM »
Can’t see a tag just a e on the servo

Royce Peterson

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Re: How do you id a c6
« Reply #6 on: April 08, 2020, 12:45:52 PM »
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
1968 Cougar XR-7 GT-E 427 Side Oiler C6 3.50 Detroit Locker
1968 1/2 Cougar XR-7 428CJ Ram Air C6 3.91 Traction Lock

propayne

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Re: How do you id a c6
« Reply #7 on: April 08, 2020, 03:56:52 PM »
Here is a photo of a C6 with its tag.

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

- Phillip

President, Delmarva Cougar Club - Brand Manager, Cougar Club of America

rbarkley

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Re: How do you id a c6
« Reply #8 on: April 09, 2020, 11:05:46 AM »
Here is what I have in my 67 GT 500 Automatic.


rbarkley

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Re: How do you id a c6
« Reply #9 on: April 09, 2020, 11:07:00 AM »
missed the tag shot

shlb69

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Re: How do you id a c6
« Reply #10 on: April 13, 2020, 08:57:24 PM »
Here is a photo

Royce Peterson

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Re: How do you id a c6
« Reply #11 on: April 14, 2020, 05:39:56 PM »
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
1968 Cougar XR-7 GT-E 427 Side Oiler C6 3.50 Detroit Locker
1968 1/2 Cougar XR-7 428CJ Ram Air C6 3.91 Traction Lock

shlb69

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Re: How do you id a c6
« Reply #12 on: April 14, 2020, 09:40:28 PM »
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

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Re: How do you id a c6
« Reply #13 on: April 15, 2020, 06:37:51 PM »
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
1968 Cougar XR-7 GT-E 427 Side Oiler C6 3.50 Detroit Locker
1968 1/2 Cougar XR-7 428CJ Ram Air C6 3.91 Traction Lock

shlb69

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Re: How do you id a c6
« Reply #14 on: April 15, 2020, 08:40:46 PM »
Thank you