Chevy 50,
I installed the complete rear end, including sway bar out 72 Nova in my 51 pickup. It was many moons ago so the details aren't fresh, but with new brackets which I fabricated, it was an easy task. Look at the swap one piece at a time..it has been done a zillion times before and there is lots of info on it. Like Houston said, measure. You will see the spring width is very close..not a bolt in though.
The engine will fit...the tranny will fit. Let me tell you that the new rear end with it's car spring rates certainly doesn't do very well with the stock farm truck front suspension. I would definitely think "front clip".


Stuart.