Thanks for the clarification. I went out and blocked up the yoke and tried giving it a few tugs with the breaker bar. I just about pulled the truck off the jackstands sideways. If it is indeed initially torqued to 250 or more ft lbs I wont be getting it loose anytime soon. I dont have a compressor, so of course no impact. And I really dont like the idea of heating my rearend to a rosy glow. I think I'll go shopping for a mobile welder or the like that may have a truck mounted compressor that can pay me a visit this week. In the meantime I'll get back to swapping in the OD tranny, and re bushing the trailing arms.