Hey guys, I'm taking my jeep into a dealer next week but was hoping for some help before I got there. My jeep has bad death wobble at 45mph but it will only do it if I'm in 2wd, 4wd it's non-existent. I thought I had it fixed last year after I replaced the steering gear box but that only helped for about 2 months. It's back now but I've noticed that it won't wobble if it's in 4wd. Can anyone help explain this?