This is a 12 bolt possi that was in a 66 Nova, it has a new Eaton possi unit and new 410 gears, it also has aftermarket axels, it is set up now for disc brakes, the calipers was jet coated and need to have the piston and seals installed in the calipers. It also has a nice aluminum cover on the rear. Asking 1500.00 It measures almost 52" from flange to flange. Call 352-237-9121