Whenever I drive on the highway for a while and everything gets nice and hot, and then I drive on the street, my rear end starts jerking and makes a snapping sound. This has started to happen ever since I got a leak from one of the rear main seals. So is my rearend dying or is there just a lack of gear oil? I'm planning on getting the rear seals replaced in a couple of weeks but I don't know if I should also get the trac-lok rebuilt.
