Hi, I think the reason your not selling this is because people have it confused with the late 60s BOP 12 bolt (junk).
If i had a use for it I would buy it but I don't. If you really need the cash i'll give you $300 for it just to have in stock.
Actually I think you are talking about the Type "O" 12 bolt that came in some oldsmobiles with 12 bolts on a smooth cover and 10 bolts holding the ring gear. Buicks and Pontiacs never shared this type of rear. 70 Formula Firebirds and Trans Ams shared the same 12 bolt that Camaros got other than the stamp on the tube was different. I appreciate the offer but will hold off for now as it's not eating anything and someone who needs it will eventually see it... Thanks