Noticed a clanking the other day, that appeared to be in the suspension "only occurs when I hit a bump", and not in the drive train. Was only today I was able to figure out it was the Driver Rear. I took a peak underneath and found what was clanking. Its still intact, just not centered with the main leaf. I can move it side to side, but looks like the hanger may have come down. Can anyone diagnose a solution for this? Nothing appears to be broken yet, just that a rusty hanger might have given way on the outer rear leaf

 

Looking at it some more, I think I found my answer. That's the middle leaf. It must of busted at the center and worked itself out between the top and bottom leafs. Going to call a suspension shop tomorrow.

 

Looks like the bottom leaf to me. Replace the packs on both sides. That clank is probably because the u bolts holding the leafs to the axle are now loose and the axle is hitting the leaf pack.

I would drive it like that as you could cause some axle wrap.

 

RESOLVED. Took it to a frame shop where they rebuild the leaf spring units. They replaced the broken spring with a new one, and replaced the same spring on the Passenger. I also decided to have it upgraded to a 4-leaf while there since I'm doing some towing with this. So two new leafs each side, reused my old U-bolts, with labor came in at $470. Was done in less than 5hrs too.

Going back 3yrs the left side was sagging a tad to left ever since I got it used, at least up until the break. Now the truck is level on both side, and rides much much firmer, but didn't ruin the ride quality. With the 4th leaf it raised the back by about .5'.