i'm on a 4" lift and currently have no steering stabilizer since mine broke. i'm getting bad vibrations, feels like the front axle anything over 45mph. could this be because of the stabilizer? can't think of anything else it could be.
It came with one from the factory so, yes, replace what's missing and that may correct the vibrations. With a 4" lift you will want to get a heavy duty SS (steering stabilizer).
In the meantime, use this opportunity to find worn parts. Have a friend sit in the seat with it turned off and bump the steering wheel left to right while you are underneath watching, listening, and touching all moving joints with your hand. Try to find any binding, odd movement for a joint, or looseness. You didn't mention Death Wobble so I won't assume you have it, but check my links in the event a new steering stabilizer doesn't correct the problem.
Good luck and keep us posted. Share what you find, if anything.
no death wobble. all my TRE's are replaced and i have a new MOOG SS being shipped right now but i won't get it until Thursday and it's my DD. when i was stock i ran without one for at least 6 months and didn't feel a difference.
yeah def the front driveshaft, check the u-joints for play, if not then u need uca's to get the pinion angle back closer to oe spec, im at 4" on stock arms til whenever my long arm kit decides to show up and i dont have any death wobble, and i ran without the steering stabilizer for 2 weeks waiting for a new one (damaged the original offroad), course i had replaced 4 ends, wheel bearings, and most u-joints a month prior to the lift, so def dont listen to anyone saying that there vibrations were fixed with a new steering stabilizer, it only masks the real problem(s) until it wears out again
2003 WJ Overland, 4.7HO, D30 & D44A (1 tons going in now!), RC Long Arm, lifted 4" Front 6" Rear, RC 2.2 4" Shocks, JKS track bar, custom hi-steer, 35" Procomp M/T's on JK rims, beefed up Overland rock rails, custom skids and dif gaurds, Rugged Ridge 8500 synthetic winch in custom hidden mount