Knocking in my rear end
I just got some work done on my 97 dodge ram 1500 4x4, I replaced a u joint (Diff "connection") and serviced the other ( transfer case "connection"), both are greased up, but im still hearing a knocking in my rear end either when im driving or at a steady roll, happens in reverse too. What could this be ? My axel ? Not enough grease ? not serviced right ? the knocking doesn't always happen, most of the time after ive been driving for a bit, but sometimes itll do it no matter what. Does anyone have any clue as to what this may be? Before I just start buying and replacing parts.