1970 GMC front drums
 

I have a 1970 GMC 1/2 ton 4x4.

I want to keep the stock front drums (no time or desire to change to disc brakes. Way too many other projects to get done) but I'm having troubles finding replacement drums. Mine are wore too bad to be machined.

I heard from one parts guy that I might be able to take the rear drums and machine out the center hole to fit over the hub. Has anyone done this? Does it have to be done by a machine shop or could a guy simply grind it larger?

Thanks for the help.

Re: 1970 GMC front drums
 

Check Advance. My local one shows them online. ALso check Rock ........I think that's teh name.

Re: 1970 GMC front drums
 

Should be easy to find.
LMC catalog for comparison.
http://www.lmctruck.com/icatalog/cb/full.aspx?Page=150

Re: 1970 GMC front drums
 

Turns out the rears are the same as the fronts! Thanks guys.

Re: 1970 GMC front drums
 

glad you have a 1/2 ton 4x4 and not a 3/4 ton 4x4...lol you cannot find front drums for a 70 3/4 ton 4x4.

I have a 69 3/4 4x4 and i did find a new set for it. those fit 67-69 3/4 4x4 front only. I paid $400 for the pair of front drums,last set in the warehouse.

I even got the 1/2 of dust that was on the boxes..but i got new drums..