Ok..so spring is shortly arriving..newborn is finally here..and we finally settled into the new house..time to get the ride up and running.Awhile back I bought a used Moser 12 bolt off the classifieds and it came with the u joint needed to adapt to my stock driveshaft so I installed it and went.I am in need on a new one while the rear is out for fuel system upgrades and need to know if anyone has a part number or location to pick one up?I see no numbers on the old joint.Every local parts store near me argues that a 12 bolt never came in my car from the factory..no s**t!I explain the whole aftermarket rear assembly and I get a "I don't know..maybe GM?"Any and all help is greatly appreciated.