Grinding/Growling noise from T-case
1993 YJ with a 2" suspension lift.
New driveshaft (broke the old one, also chewed up 2 slip yokes)
New rear brakes, drums and all. They were badly warped after a Doh moment on the trail.
I've been chasing a driveline vibration for about 2 weeks now. The new brakes and new driveshaft seem to have solved the axle hop/vibration. It would only hop when I was slowing down. During acceleration or at cruising speeds I had no shake what so ever, and no noise.
Now to the problem...
When I hit a bump and the suspension starts to flex and bounce I get a growl/grinding noise from the tcase area. The severity is directly linked to how big of a bump or how many bumps in a row. Rough road makes the Jeep sound like the t-case is about to blow itself apart. It doesn't seem to affect drivability, other than scaring the living crap out of me.
Any ideas what this could be?
Other pertinent info. The rear shocks are shot. original chrysler shocks with 250k on them. I am switching them out with new Bilsteins tonight.
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