:smokin: have a 71 1/2 ton, i want 3/4 ton. do i have to stay in the 67-72 generation or can i use the front and rear ends from later year chevys.
whats the differance if any.

:smokin: somebody has to know the answer, is there a differance between the 67-72 chevy front and rear axel assemblies and the later years 73-89?
is the distance between the spring perchs differant?

For the front, mostly bolt in. I have a 62 burban, swapped in a disc'd 44, IIRC only the shock mounts were slightly different. For the rear, a 14ff or D70 out of a 1 ton GM will bolt in, joints and shock mounts are the only major difference. I went with a Ford 60, beleive out of a 1 4x4 ton, and it bolted in, changed nothing. Tiny ass 1310 joints, and my shocks are on the factory lift blocks. Selling them if you want mine....in the classifieds.

:smokin: thanks b454rat,
i knew somebody would be able to help.

I'd go with a factory 67-72 Eaton rear.May be a little harder to find but factory ratio's were 4.10,4.56 and 5.13.That gives you a little more $$$$ left for other upgrades if you can get the ratio you want factory.Some also have factory Detroit's too:cool2:

:smokin: thanks 1967k10,
it would be nice to find the right parts, i,ll keep my eyes open for them.
thanks again,