Hey, I have a clunk that happens every time it give it gas, and after I let off the gas. Engine mounts are new and the transmission mount is as well. What's not new are the rear leaf springs. I recently changed the gear oil and saw nothing out of the ordinary. U joints don't show any play either.... thoughts?

 

I'm getting a squeak from my rear driveshaft or brakes and someone told me they had the same issue and it was the u joints, I would check your u joints and u bolts

 

U joint is bad

 

A clunk when you give it gas from a stop or hit the brakes. I'd pull the driveshaft and grease the splines on the output shaft and the front of the driveshaft.

 

I greased everything up and replaced the u joints. Still have the bump and clunk. Noticeable when shifting into reverse as well.

It sounds like it's coming from the transfer case (NP 231). While the transmission and engine are rebuilt, the t case isn't. It has 242k on it. Could this be slack in the chain?

 

It could be. I have had a chain (different vehicle) get stretched and make noise. Also, check your tranny mount if you haven't already.

 

Checked, and all is tight and good.

 

Probably R&P, or wheel bearing.

 

I know the front needs work, bunch of loose stuff up there. But would that cause a clunk when moving from drive to reverse, or upon acceleration or letting off the skinny pedal?

Just greased up the transfer case output shaft.

 

Check your motor mounts and tranny mount. Look at the rubber inside the mounts and make sure they look good, not cracked/missing chunks or seperated.

 

I will again, but I installed new ones when I did the rebuild this summer.