ive got a front cv shaft off a superduty that i was going to run in my k5, but since im building a k30 now, im might try to make it work in the front, or lengthen it to work for the rear. i wasnt going to think twice bout using it, its got 1350 joint and 1350cv and came off a diesel truck that makes 300+hp and 500+tq from the factory.