[Dieselwrencher]

Originally Posted by 1972CST

Im helping cousin is replacing his old 10-bolt axles in his 87 silverado w/ a 1-ton set. Im not sure exactly what we will run into. Here are a few things I had in question.

-front brake hoses
-rear brake hose
-front u-joint
-rear u-joint
-rear e-brake cables
-front steering drag link
Will the original master cylinder and prop. valve work ok with the new axles?
Im sure there are some guys here that have done this very swap.
Thanks in advance for all your help!

Ok, here goes. It's been a while since I have done a GM 1/2 to 1 ton swap, but I'll try.

Front hoses could be different due to a bend on them at the caliper on the 1 ton. You might be able to make his work with some modifications to the mounting tab at the frame.

Rear brake hose could probably be reused if his is long enough and still good.

Front U-joint I'm thinking will need to be replaced because it should be a 1350 and I don't think the 1/2 tons were. I could be wrong though.

Rear U-joint same way. I'm betting you wil need different drive shafts as well due to the lengths of the pinions being longer on the 1 dana 60 and the 14 bolt rear.

E-brake cables will depend on what year the donor was, but you may be able to make his work.

Front steering drag link should work. You may have to adjust it to get the correct amount of travel, but I think the rod end is the same.

The original master cylinder and prop. valve should work fine. Hope this helps out. Ryan.