Originally Posted by Chevy Eleven
The origional housing was out of a mid 80's camaro....when I got it there was 4.11 in it and was swapped with the 3.73 that is in it, so that is a very good question.... I guess I do not have a clue what it truley is. Dumb noob mistake now I am on a mission to find out what that is as well.
If it is indeed post '81 Camaro, it is a 7.5/7.625" rear, a real weak duck no matter how good the parts are in it. Strange axles in this rear was a real waste of money, the ring and pinion are the weak links(especially the pinion). Now I understand your worry, that a 383 will tear it up, but a 350 will tear it up just as easily of you try to get it hooked up good(sticky tires and traction aids). This is a poor rear end choice for anyone to swap in, it is only better than the original 4 lug rear, and only a little better.