I have a spare D5 that was rebuilt and upgraded a few years back at the same time that Deltrans in Newark, DE rebuilt and upgraded my trans for me. I had them do 2 of these. They upgraded the bearings and brazed the fins ,cost $250.00 each. I would sell the spare fresh one for the $250.00 in the rebuilt and shipping costs. This has not been used since rebuild. 703-328-4772 Mark