I have a 12 bolt rear out of 71 cutlass that my rear drivers side axle broke. Its a 28 spline does anyone know where to get a replacement? Is a 10 bolt rear drivers axle the same?

Thanks

 

A '71 Cutlass came from the factory with a 10 bolt cover & a 10 bolt ring gear. If your car has a 12 bolt cover & a 10 bolt ring gear, it may be an Oldsmobile rear end but you need to know for sure before you start buying parts. Can you post a picture of your cover & any letters on the side of the differential along with pictures of the ribs on the sides of it. I have a 12 bolt Olds. rearend that I just pulled an axle out of for another guy. If it is indeed an Olds. rear end that you have, I may have an axle for you.
I "think" the axles are the same as far as 10 or 12 bolt, assuming they both have 28 splines.

 

They are very close but do not interchange (I tried and it didn't work). The splines are different and the shaft will not insert into the carrier side gears.

 

We have replacement axles for 129.00 28 spline for sealed or oiled bearing axles
1970 is usually oiled bearing
1967-1969 is normally sealed bearing axle.
You do need to know which one you have before ordering.
Studs new are 1.15 each installed.

Jim
J D