WK is at the shop today... rear pinion seal, crank seal, spark plugs, wheel bearing, and transmission fluid/filter change.
Last night, I was driving home about 25mph through the neightborhood and all of a sudden it sounded like a screaming person under the rear end... high pitched squelch. Almost like squelch for brake pads but not the same... it was rotational... then it went away completely... returned a few hundred yards later. This morning on the way to the shop, nothing. Traveling 70MPH down the highway... nothing... then loud violent clunking in the rear end... Like someone was hitting the bottom of the Jeep with a hammer! I changed lanes, and it went away.