Thread: 3:07 Rear End
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Old 03-20-2018, 05:59 PM   #5
Jrainman
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Re: 3:07 Rear End

Quote:
Originally Posted by LockDoc View Post
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davepl is correct. A 2004r and a 3.08 rear gear do not play well together. The ideal gear for the 2004r is the one you already have. A 3.73

I tried the 2004r and 3.08 in my 69 Suburban and it put too much stress on the trans when it was locked up in OD. It overheated and blew trans fluid out the front seal..... If you left it in 3rd gear it worked OK but that defeated the purpose of the OD trans. Put a 3.73 in it and no more problems.

LockDoc
I run a 3.08 with a 200 4r in my 68 with no issues, I dont understand when you say they dont play well together , a lot of Chevys' Buicks' and Olds came in this configuration in the 80s and 90s even the 1990 Caprice Police pakage came with a MW9 (200 4r ) Trans and 3.08 rear diff.
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