leaf spring squeak

i have 3 inches in the front of my acess cab and just recently both leafs in the back are squeaking rediculously. yall think its because i havent lifted the back? and any suggestions other than wd40 to remove this problem

 

dude we both summited a thread pretty much about the same thing pretty much at the same time..... weird huh

 

look in your (bwood) thread

 

My brother has an 08 D-Cab and his squeaks as well. I looked around and couldn't find anything that jumps right out and says "This is why its squeaking." I wonder if getting the Rear Spring TSB will fix this. Mine on the other hand has no squeak, but I have only had it for 2 weeks.

 

I dont have the TSB done and i dont have any squeaks