8.25" Sure-Grip rear with 3.21 gears. Came out of a '77 Aspen R/T that was wrecked in the early '80's and has been sitting since then. I've been looking for an R/T project car to put it in, but haven't had much luck. Therefore, it's time for it to go. It'll need a rebuild, obviously, but all of the internals are there and it's never been apart. Unfortunately, the front nose of it sat in the dirt for most of that time, causing the pinion yoke to corrode. The back cover was on while it was in storage. I'm located in southern Illinois. 2 hours straight East of St. Louis and 2 hours straight West of Indianapolis. $375 OBO for the complete axle, you pick it up. $350 OBO for the ring/pinion/Sure-Grip assembly, plus shipping. Figure $25 to $50 for shipping. Open to offers on the rear, or, if you have a solid Aspen R/T you're looking to part with, I'd be interested in purchasing and using this rear in it. I would also be interested in using this as a partial trade towards a C-body project. PM with offers.