1980 C30 1 ton srw to drw

Hello Im looking for help to get going in the right direction. I have a 1980 crew cab 1 ton srw that I want to a dually. Can any one can help me find the right parts or what I can reuse on my truck. Thanks for any help.

if your gunna run 22 in semi's you can use that rearend.. and in there front as well..

im planing on running 06 gmc stock wheels.

then youll need a dually rear end and up front all you should need is the new dually rotors i think the spindal will be the same.

As far as I've been able to figure the spindles are the same, I believe it is the brake rotor that is different.

Thanks you guys have been alot of help. NO I can start getting the right parts.