Whenever I come to a complete stop I feel a CLUNK.

[edpdx]

Feels like it's under and towards the rear end, but I can't be sure.

Anyways, I am not sure what to look for, it was happening before the U-joint at the rear axle failed and was replaced.

What could this be?

 

[TexAndy]

Does it clunk again when you start moving?

 

[dalton92]

Need to grease, u joint and splines

 

[edpdx]

Does it clunk again when you start moving?

yes, now that you mention it.

 

[Drock]

Could also be the rear brake shoes. If a pad has delaminated from the shoe or if the shoe spacer bar is missing or dislodged.

 

[pebble41]

You might want to check your rear leaf spring bushings. I had a slightly delayed clunk on stops when the rear spring bushings in my '88 Toyota needed changing.

 

[ODFever]

What is the color of the transmission fluid? Does the fluid smell burnt?

 

[MtnSnow]

A clunk can occur upon stopping and starting due to "axle wrap" thus causing the drive shaft to momentarily bind in the slip joint. Usually the fix is checking and fixing problems with suspension bushings, replacing worn leaf-springs etc.

 

[Tow4]

Get under the truck and check the drive shafts for play in the u-joints and slip-joints if equipped. Push and pull on each end of the drive shafts to check for play in the pinion and transfer case. Anything that has slop in it will make some kind of noise in operation. Also check the exhaust system. I had a loose clamp and it would "clunk" starting and stopping.