I bought this from a kid who had tried to install new gears and this unit in his car, only to have the pinion stick the first time he installed it and he destroyed it trying to take it back out and gave up. As you can see, it has never been run but it did have a ring gear bolted to it when I got it. I bought it thinking I would upgrade to 31 spline axles, only to discover that this is a newer style 34. I instead came across a deal on a complete differential and never got to this. This unit has been stored in my shop in Florida about a half a mile from the coast and as you can see it’s starting to get surface rust on it and I would not trust the bearings ( which are new) at this point. All the internals are still excellent. It’s merely some surface rust from the humidity down here and I’m going to do a better job of storing it away now.