thanks, for info, there is no tag on this rear end, only numbers on the diff, unitYou have a Chevy 12 bolt in a Mustang? That's different. The '57 9 inch would only have a tag with the gear ratio on it. There wouldn't be anything else on there. Must be later than '57.
Idid not know that the 12 bolts are coming up in price, its been 30 years since i played with my mustang, i do want to install the 57 9in in just to have it all ford again, thanks CliffMust be a first gen Camaro 12 bolt. I know several people who have bolted early Mustang 9 inch Fords in their first gen Camaros. Strange how things turn around. The price on those Camaro rear ends has gone through the roof.