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Discussion Starter · #1 · (Edited)
I put a 454 in my 85 Suburban and it was apparently too much motor for the stock 700 R4 trans., so here is my question, what would I have to do to swap out the 700 R4 with a turbo 400? Would I have to change drive lines, are the trannys different length, and will my transfer case on the 700 R4 bolt on the turbo 400 because my transfer case is fine. Any help would be appreciated.
Or would I be better off rebuilding the 700R4 and having it beefed up to handle the power and torque of the 454?
 
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