I am listing two 1970-1981 Camaro or Trans Am 12 bolt posi rear ends for a friends wife. He has passed away and she would like to sell the rear ends. One of them has 4.56 gears with large ford axles, disc brakes with all new bearings, seals and gears. The casting number is 3969341, cmy-1015-K - 1970, Oct 15th. The other rear end has the 4.56 gears but is more stock with regular brakes. I know he had these all apart and fully rebuilt them for his 70 Camaro. He was very particular and they will have been done right. His son has them posted on Winnipeg Kijijji with pictures. He had been asking $1800 for the fancy one but his wife has listed it for $1000, wants to sell them both and is open to offers. If you have a car that needs a rear end or you are building one these rear ends are a great deal. You can call me for more info or additional pictures, Norm, 1-204-284-2864