70 vs 85 chev questions

[onetoncrewcab]

Got a couple of questions on a transplant I want to do on my 70 Chev 1/2 ton pickup. I have the 6 bolt pattern rims on it now and want to change to 5 bolt. I have an 85 chevy Suburban that I can get the whole drive train out of it. I know the engine cradle with the disk brakes is a bolt in operation. Not a problem. Here are my questions:

What about the rear axles? Can I remove these from the sub and bolt them in on the 70? I think I read that the 73-80 axles are bolt in. What is the differance at 85? If the bolt in is a probem, I can get new brackets to weld to the 85 axle and do the transplant that way.

Will the power brake booster work on the 70? From what I've understood, I'll probably have to fabricate a new linkage from the pedal to the booster.

What about the power steering gear. This is probably metric, but if I use the power steering pump setup from the same truck, it should work?

The sub I'm using is a fairly decent truck with a rebuilt engine and trans. I don't want to use it for a parts truck if all I can use is the engine cradle though.

Thanks for the help!
Mike