I'm still looking for a 12 bolt rear end and axle, most preferably positrack that is geared at least 3.73, or at least the carrier is big enough to hold 4.10 or 4.11 gears. I can pick up within a state or so, I'm located in Lewiston, Idaho. I'm going to adapt it to fit my big block G Body Cutlass.

 

I have a 68 Type O 12 bolt with 2.56 gears (non posi) and the bearings make noise... Want $100 if interested.

 

I'm not in a hurry to sell it, but my 1970 442 has a 1971 Chevelle 12 bolt posi under it. It has a three series carrier with a spacer ring and Richmond 4.10 gears. The previous owner also welded on brackets for traction bars. Eventually I would like to put the correct rear end under the car. Do you have anything interesting to trade? John