As for the rear axle, I haven't seen anyone here who has been able to "bolt it up" without relocating the spring perches. I could be wrong.

If you are already familiar with getting the pinion angle right, then my apologies, but here's a short video explaining how to get it right...

Geting the pinion angle set correctly


~ Dave
1950 Chevrolet 3600 3/4-ton with 261 engine & T5 Transmission