JEEPSHEEP

I have a 96 xj 4x4 all stock with 150K miles on it and stock size tires with non aggressive tread. Ive noticed that it is making a "humming" sound for lack of better term only at 30 - 35 mph. I know I have one front u joint on the drivers side that needs replaced, I think. That is making a clicking and squeaking sound when I turn. Could the humming sound be related to this or could it be tires or transfer case or something else? It just seems odd to me that is only at 30-35 mph. Any help would be appreciated.
Thanks

TrekkerJmm

Could possibly be a rear axle/pinion bearing going. Does it sound like woowoowoo? ...Tj

JEEPSHEEP

Tj, sorry if this sounds dumb but I am by no means a mechanic. Are you talkin about the rear of the front axle or the rear axle itself. I maybe should have said earlier that it seems to be coming from the front not the rear. I maybe should have also described it as a "howl" because to me is sounds like an off road tire howl but it goes away after I hit 35 mph.

housew

i've had that noise from allignment before, but that doesn't explain why it goes away after 35. If its comming from the front end and is constant I would say tires / alignment, if its comes everytime the tire goes around then it could be wheel bearings / tires out of balance, if its comes 3-4 times everytime the tire goes around it could be something differential / driveshaft related.

The u-joint wouldn't make a howl, just a clicking noise like you though