563-282-2665 ... This is a 12 bolt Housing it fits 68-72 GM A Body Cars, Chevelle , ElCamino.Monte Carlo, Cutlass,Regal, Ect It comes with both Axels, Backing Plates and Drums. No Carrier Gear or cover. I have a like new Detroit True Trac Posi Unit with 390 gear listed in another add on here.but not included with this. Interested call or Text.