still have a clunk in the rear/ whole truck

[benoit454]

Well guys I posted awhile back about having a clunk or thump in the 84 c10 we got, it's supposed to have a locking rear in it factory. Now my monte carlo had a mini spool and busted teeth in the rear and done that while you pushed it, this truck only does it at slow speeds it seems like rolling forward in traffic, just after using the brakes and more so when you turn. It seems to be worse at times or worse here lately, but now when there's a load on the truck we thought it be worse, but it wasn't. We had about 50 2x4's and about 12 sheets or more of 4x8x1/2 drywall on it and other stuff and it was squatting in the back but had no clunk at all.

We put new brakes on it, had drums turned and replaced ONLY one wheel cylinder, I know you aint supposed to do that. Put on new wheels and tires, no brakes, rotors, and bearings up front, checked all the front end parts, nothing was bad.

Some said maybe the transmission was doing it, a bushing or something, there's no noise, just the whole truck thumps forward like somebody is kicking the tires or something.

Now we haven't checked inside the rear end yet but maybe it's a bearings inisde? We been thinking it's an axle bearing or something? maybe carrier bearings? Anyway to test without gutting it to see? Right now it's been cold and it's the only thing we got to haul stuff or pretty much drive this winter.

Now today while changing tires to the snow tires, i found that the rear spring hanger is rotted on the driver's side, it's the part attached to the frame that the shackle attachs too. Could that be what's doing it?

Also I've checked brothers, classic parts, and a few others and LMC is the ONLY one I found to have that frame bracket/hanger, anyone else know who has em other then gm?

Any help guys would really help us out.