I have been getting what seems like the driveline clunk when accelerating from a stop. I put the truck on a lift and dropped the front and rear driveshafts to clean, inspect and re-grease the slip yokes. Both yokes were clean and lubricated.

Hmmm..

Only thing the service manual suggests aside from slip yokes is the u-bolts holding leaf springs could be loose.. I put an impact gun on them but they were tight as a drum.

My buddy suggest slipping some grease in between the leaf springs themselves. He says the bushings in the springs can wear and clunk when a load is applied. I was skeptical but we gave it a shot.. Dropped the truck and guess what?... Buttery smooth. No more clunk.

Any of you guys see this before? You think I need all new springs or can I just replace the bushings?

Thanks

 

So you lifted the truck and put greasr in between the leafs? Mine makes the clunk and its annoying as hell over all the speedbumbs in my condo complex

 

Get new pads for the leafs

 

Check your leaf springs mount bushings also...