Finally got my truck on a lift to see where noise was originating from and per my mechanic coming from my rear end he said my drive line to rear end needed to be ajusted. something like it was rubbing against my carrige ? Im kind of in a situation where im wondering if my previous mechanic is to blame ? because before rear end started making noise i had my seals replaced on my ball joint and front pumkin gasket my rear end wasnt making noise prior to that . The mechanic that diagnosed my noise problem is a diffrent machanic than the one that replaced my seals. I asked this mechanic if he thought the work that was previously done had any thing to do with this problem of my rear end needing ajusting and he said he doesnt think so becuase if all the previous mechanic did was seperate and install gaskets then he should have not needed to mess with adjustment. Does any one have any input or expertise in work associated with replacing the ball joint seals and pumkin gaskets to know whether or not this would of caused my rear end and driveline system to be trown out of adjustment.