1956
gm 14 bolt rear end housing
GM 12 Bolt
Casting number 1253741 rear end housing is 76 Monte Carlo thats what is in mine
the 8.2 is the weaker of the 2 as the axles are smaller, the 8.5 is a super strong rear end, almost as strong as the 12 bolt.
Yes, that would be the easiest way to find out.
It is the stamped identification number on a 12 bolt rear housing for a Chevy/GMC vehicle that measures 60.625" axle tube end to axle tube end. Mostly truck housings but there are exceptions to this rule.
10 bolt k 3 casting #1254332 ratio is 2.56 positraction ring is 8.5 inches
I have one in my 92 Camaro if that helps you
It is the drivers side rear wheel well molding
They are both GM products why would you?
ccc 02311