Question for the Jeep experts
I have a 2007 GC as a daily driver and my Toad. 4.7, 4wd It has developed a hum, it seems to be a harmonic issue almost. It starts at about 32 mph, gets louder until about 35 and stops between 38...
Forum Discussion
I have a Jeep Wrangler, so your GC is probably different, how ever U joints is what I would be looking at, over the years Ive had U joints squeak, squeal, click and a variety of other sounds. It would be a place to check. If any are discolored, as in showing some signs of rust,or are loose etc. The other suggestions seem logical, pinion bearing, might see if the seal is leaking.
