8.5-inch GM rearend retrofit


Back in the ’80s (40-some years ago, if you can believe it has been that long already), it was fairly easy to find a 12-bolt rearend for under your muscle car. The strength and presence can’t be denied, but finding one today is so much more difficult and expensive that most people don’t even bother looking anymore. This is part of the reason why so many 9-inch Ford rearends have been put under so many GM cars.

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