Drum to disc conversion

[AndyBare]

Howdy folks, working on a 67' GMC 1 ton dually truck. I know that I can do a conversion by using the control arms and spindles off of a 73-87 GMC/Chevy, I was wondering though, can i use 3/4-ton spindles and arms on my 1-ton? I'm really having trouble finding c30 stock height spindles online (not a whole lot of time to go and take them off another truck). I find c20 conversion kits much more abundant.
Thanks for the help!
Andy

[davepl]

That's two different questions. You ask if you can use C10 parts because C20 kits are much more common.

Which is it... do you have a good source of 3/4T parts (C20) or just half-ton stuff? I can imagine you might get away with 3/4T pieces, but not 1/2T...

[AndyBare]

Originally Posted by davepl

That's two different questions. You ask if you can use C10 parts because C20 kits are much more common.

Which is it... do you have a good source of 3/4T parts (C20) or just half-ton stuff? I can imagine you might get away with 3/4T pieces, but not 1/2T...

My bad, I fixed it. Yeah, I was just asking if I can use 3/4T parts. Has anyone done it?

[michael bustamante]

i dont see why not. change the control arms, springs, spindle and steering linkage. and brake lines i dont think it would be a issue. but ive only done half tons.

[davepl]

I've only done 3/4T parts, but I did them on my longhorn frame. If I understand correctly my frame is the same as every other 133" 1T frame, so that tells me in theory that 3/4T parts bolt up and work with the 1T frame.

That's just a theory, someone with mechanical knowledge of these frames can hopefully chime in.