Suggestions for Rear End Build & going to 200R4 from TH400
My father had a 71 GTO and drove it into the mid-1980’s. He put 114,000 miles on in it as a daily driver. I have the car and finally restoring it as a driver so I can enjoy it.
I’m using a guy here in CT to re-do the rear end. He asked what brand of internals I wanted to use. Any suggestions would be helpful. I’m keeping the 3.23 gears and thinking of going with a 200R4 trans that he will also rebuild. Car will be driven but not raced. Motor was done already with mild improvements by Jim Taylor(R.I.P.) back in 1998-ish.
Looking for suggestions for what brand to use for internals for rear end rebuild. Also, any advice on what it takes to replace a TH400 with a 200R4?
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11-25-2025, 08:27 PM
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