ok so maybe a couple of you guys already know what the cure to squeaky leaf springs and the knock you can hear through the floor board when turning but i just know that i couldnt find a direct answer when i was trying to fix mine so now imma put out my Complete Fix :]

I took my truck to 4wheelcenter and asked them to put new shocks on cause the truck badly needed some and asked them to take a look at the front end knock and the squeaky leafs turns out...

Dry to the Bone LS Bushing were the squeak culprit

A loose lower control arm bolt caused a grinding and sliding out from its specified little hole and would hit back and fourth so had that tighted

but im just so happy those problems no longer continue hope it helps to people who cant find answers

 

what type of grease or oil should be used on the rear bushings?

 

idk which exactly but its like a red/pink color grease

 

where are the rear bushings at?

 

to where the leaf springs connect to the shackle where the bolt is ( looks like a cylinder)