Suspension Clank?? Im Boggled!!!

[BigDaddy13440]

Mine did the same thing for about 3 months, until I crawled underneath to check...

I'd added a few extra leaves to the rear packs, and had to put a new bolt in to align the leaves. Apparently, I didn't think to use a grade 8 bolt, just used whatever I had (standard 3/8")... and my leaves were shifting whenever I came to more than a rolling stop. When I realized what it was, I disassembled the pack, and found the bolts were bent into an S - luckily, they didn't shear completely. Even though my u-bolts were as tight as I could possibly get them (using an 18" breaker bar), no doubt one side of the axle would have slid enough to have something catastrophic happen while I was doing 70mph...

I opened up all the holes in the leaves to 1/2", and used a Grade 8 bolt to align them. Problem solved.

 

[stereodesigner]

My guess is splines also

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[the big blue bus]

thinking i have this problem now. just put a reman trans in mine and comming to stop i feel i clunk. doesnt dowhne acc. only stoping, thought about greasing it before i put it back together guess i should have lol. going to pull it tomorrow and see if that solves the clunk

 

[96redsport]

This makes sense to me. I have the same thing happening and it has been driving me crazy trying to look for a cause. And it started immediately after replacing my rear U-joint... Well def look into this.

 

[DallasTahoe]

I finally got around to pulling the driveshaft and greasing it up, and it works!! no more clunking!! Thanks guys for the help, you really know your stuff!!!