recently switched offices and been clocking a lot of miles. the other day i started getting what can best be described as additional vibrations/rumbling from the transmission/t-case area. shortly after i started hearing what sounded more like grinding from more towards to the rear differential. i've since parked it and am waiting to investigate.

some background - AW4 transmission. installed an AA sye with an xj front driveshaft in the rear last summer. have ~3in of lift so the ds is plenty long. checked the t-case fluid level and its fine. haven't checked anything else yet.

suggestions of where to start looking?

thanks.

 

Joints, mounts. Rear diff oil. Tranny fluid.

 

I would start at the u joints

 

Turn up the sub.

 

Become a mouth breather!

 

Already a mouth breathing appalacian (from pa)

Didn't have a lot of time but checked fluids (theyre all there) and didn't find any loose mounts. When inspecting u joints is there anything I can do with them still mounted? What exactly am I looking for? Just not looking forward to messing with 20 year old c clips.

Thx again

 

replaced the u joint at the pinion (not sure how to get a the ones in the double cardan joint) but its running great now.

thanks all