Originally Posted by big gear head
I wanted to take back my coment about the '71 and '72 A body 8.5 being the only one with the bolt in axles. I have found out that there were more of the 8.5 rear ends that had this type of axles, so you are probably right about your rear end being a '73 or later.
Imsport, these were Dura Grip cases that you broke? I'd like to know more about this as I have sold many of those differentials.
Must be me.
The only one I studied was broke through the pin hole towards the bearing on the side opposite the ring gear.
The big advantage to the Eaton was cost, which is no longer a significant difference, so I just buy the Eatons 10 at a time.