Auto Parts: 10 bolt rear end, carrier assembly, ring size

Question
I have a factory 10 bolt, out of a 1985 monte carlo. What posi unit can I buy to fit factory rear end? THANKS!!!!

Answer
Hi Jamie,

If you are just looking to turn an open rear into a locker...

That's a standard assembly. There were multiple styles made and all are interchangeable as full assemblies but if you are just going to change the carrier, you'll need to match up the ring size, either 7-1/2" or 7-5/8". Nearly any GM carrier assembly will fit regardless of what assembly it is taken from as long as the ring gear sizes are adhered to.

Thanks for the question, I hope this information was helpful to you.
Fred
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