hey guys i was in desperate need of some help...............i have a 98 tj with the 4.0L and  an auto tranny and the d35 rear axle and d30 front axle. the problem is with the steering, when i had the factory tires on my rig, at high speeds if i hit a bump they would move almost uncontrollably like a severe case of bump steer now i have 33's on 15x10's and it does it at low speeds when i hit bumps or potholes in the road, i changed the stabilizer(is that spelled right?!?!?), and got little to no improvment i checked the joints and they seem fine, but it still does it.............help me anyone if you can. 

P.S. i was wondering if anyone could tell me what my gearing in the axles are?!?!?

3.73's would be my guess. is there any lift? if so check the pitman arm read the mag there is an artical about steering conversion on their 5kxj sorry XO5KXJ  that might helpyou diagnose some issues also 

2" spacer lift, but nothing more(cheap'o)

it's more of a shimmy when i hit a bump. maybe that'll help diagnose anything

Does it have a shock mouted on to the steering bar like on the old Fords and old CJ5s? If it does you may need to change it or go to one that is a little heavier.  

ive already replaced the steering stabilizer, and it only helped a little bit.  

Try going to one a little beefier than what you curently have