I have the same issue, it started after I had the lift kit installed. I assume that it is why they sye and new cv shaft are recommended for lifted Jeeps.
You're never to old to have toys!
'90 YJ, 4" RC Suspension lift, 1" Shackle lift, SYE and CV, Holley Carb, 33/12.50/15 Dynapro M/T's. RIP my old friend.