10 bolt rear 3.73 gear set from a 1990 chevy truck in fair shape 10 bolt 8.5 gm corporate axle. has a chip in the ring gear in the outer edge as pointed out. and some spots where it got rust then ran old faded minnor pits. the white is from the wash cabinet and is a anti rust soap comes off with bk cleaner has bearings on it and there up to you to use or replace. in useable shape.