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11-02-2010, 03:29 PM
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Registered User
Join Date: Oct 2010
Location: Tyro, VA
Posts: 209
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Differential number code
This is the number I found on my diff: 3896838. Can anyone tell me what I have?
According to option plate I have a 4:11 rear end. I am switching to 3:42 and trying to make sure I need the new carrier, before I get it. Also, on transmission this is #: 8THM097H. This is supposed to be original tranny and powerglide. Casting # on housing: 8663548; # on tailpiece: 8642547-1. Can't seem to find any #'s on tranny that is in truck now. I have a 68 Shortbed step original engine was a 6 cyl, switched over to 350 and soon to be 327. Last edited by JJchamp48; 11-02-2010 at 03:46 PM. Reason: wrong numbers |
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