Rear squeak???

So I have the leaf springs in the rear from the pro comp nitro lift which essentially is the same as fat bobs and the ready lift. I did some light off-roading yesterday and when I returned to driving in the city I could hear squeaking in the rear passenger side. Any idea what this could be? New shocks? Loose bolt? Thanks

 

lube up the leaf packs, i had the same problem. I have no idea what it is but PB plaster gets rid of the squeek for a few thousand miles.

 

I had the same problem a while back. What I ended up doing was installing some rubber bicycle tubes between the leafs. That way they didn't have to much friction between each other whenever they flex. That's why they squeak.