Switching lug patterns

[71 GMCDRVR]

I currently have an 8 lug set up, but want to switch to 5 or six. Can this be done by switching the axles in the rear or do I need a new rear end? Also the front is disc brake (71, 3/4 ton) can I just switch the Hub/Rotor with a half ton Hub/Rotor, or am I gonna need new spindles and the whole nine?????

[68Gold/white]

There are different ways to do this, but the easiest would to be find a donor 71 or 72 C-10 Pickup (71 and 72's all have disc brakes, disc brakes were an opton in 70, just look for the 5 lugs...), and swap the rear end, and front end. The whole front crossmember is bolted in, and can be transplanted into yours, if the rear springs are the same...

I guess I should have asked if yours is leaf spring or coil??? That will make a difference. The most sommon C-10 stuff will be coil spring. Leaf springs are an option on half ton stuff, though seldom seen.

[sleepertruck72]

I would guess the rear end would need to be changed out completely and the front end would take the whole nine . Again that just a guess on my behalf

[71 GMCDRVR]

Hey sleeper, Im in turlock too, maybe seen you driving round town huh
I'm in a beat up blue GMC....but she sure is fast!!!!!

[sleepertruck72]

Originally Posted by 71 GMCDRVR

Hey sleeper, Im in turlock too, maybe seen you driving round town huh
I'm in a beat up blue GMC....but she sure is fast!!!!!

GMCDRVR,
Its possible you may have seen me, Ive been known to get around Im willing to bet your GMC isnt as beat up as mine But as long as she takes me where I need to go, its all good