Ant,
I looked around the auto wreckers for the axels and stuff and then was fortunate enough that the guy who is doing my big block does rear ends. He got everthing brand new for me for about $45 dollars more than it was going to cost to get the stuff from the autowreckers and then as he had all the stuff in his shop to set it up right. I just paid him $50 and he did all the work and set everthig up and I have never had a problem. My one lucky break in life I guess. And I took the rear end out one day and put it back in the next.
Ron