t56 Case Differences
10-20-2011, 07:56 PM
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t56 Case Differences Long story short, I broke a piece off the main case of my T56. I would prefer to get a new case as the piece that needs to be welded is so small. The case I have came out of a corvette, and the casting number is 1386-066-904. Can I use a case from a camaro/firebird with a diff. casting, or do the numbers mean something here? Thanks for any help.
04-25-2013, 09:15 PM
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I'm looking to purchase an LT1 T56 that has the *exact* same number on it that yours has. Did you ever identify this transmission? If so, what is it? Do you know what it's gearing is? 
04-25-2013, 11:33 PM
#3
Those casting numbers don't identify anything but that one piece.
The 1386-xxx number on the decal atop the case or on the tailhousing tag are what matter with regard to interchange.
LT1 had 1386-006 or 007 in 1993. Those are unique in gearing and sometimes VSS wheel.
009 is 1994-5 and 016 is 1996-7. Those two are 100% interchangeable.
The 1386-xxx number on the decal atop the case or on the tailhousing tag are what matter with regard to interchange.
LT1 had 1386-006 or 007 in 1993. Those are unique in gearing and sometimes VSS wheel.
009 is 1994-5 and 016 is 1996-7. Those two are 100% interchangeable.
066, 1386, 1386006, 1386066, 1386066904, 1386066904h, 904, case, differences, id, numbers, t56, t56case, trans, transmission
