I never thought I could get in so much trouble trying to replace a 65 C-10 rear axle with one from a 64. We knew the rear in Deb's 65 was bad but figured we'd get to it later; it's later now! The one in it is a 3.73 posi but the posi is locked up like a spool. It slides the front tires turning out of the driveway or backing out of the garage. There were lots of metal pieces including some ring gear tooth tips inside. Her dad had a 64 on the hill so I carried it to the house with my front end loader. The 64 has a much different track bar mount, the axles are different splines and axle seals are hard to find. The ring gear has the same part number on it, so I guess they're the same. Are they both Chevy axles? The posi is an Eaton unit, I think.



'65 C-10, 65 L-60, 65 C-80, 72 C-60 & and a bunch of old Chevy cars.
Never time to do it right, always time to do it over.