looks to be a fresh 8.5 10 bolt with a posi and what looks to be 308 gears. The housing is powder coated it has urathane bushings and all looks to be very low mile rebuild. all other parts on the fame that I sold looked fresh as well asking 700 local pick up preferred but if you arrange shipping pick up from 91744 I will put it on a pellet and strap it down for an extra 20 bucks Hector 626 488 5472 I have not looked at the axle code yet but it came off a 72 Cutlass
I just sent you about 10 pictures. I can take it to a local fastenal location near me if the will accept it on a pellet strapped down for the extra 20 bucks. Hector