4.5 lift advice / death wobble - JeepForum.com
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post #1 of 4 Old 11-09-2014, 12:20 PM Thread Starter
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1995 YJ Wrangler 
Join Date: Oct 2010
Location: california
Posts: 10
4.5 lift advice / death wobble

Been reading quite a bit and have decided that the Rough Country 3.5 lift we installed 3 years ago was not the best quality. Seemed like a few months after the install the ride went south. A year later we started little by little the Death Wobble, to the point it's not safe to drive above 50 mph, so now I would like to start again. This time with a better kit, maybe 4.5 complete lift. Hoping to gain a little more in the way of wheeling, and of course completely ridding the Jeep of the Death Wobble. We own a 96 XJ, 4.0, auto with a Dana axle. We are not rock crawlers, but do enjoy medium level wheeling. Any advice would be great. Thanks for your help, Cman.

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post #2 of 4 Old 11-09-2014, 04:15 PM
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1988 XJ Cherokee 
Join Date: Sep 2008
Location: W.Houston, TX
Posts: 254
You need to track down the loose component, in most cases it is a worn out track bar. While I'm not really a fan of RC you really can't blame them for old parts being worn out.

If you have someone to help you the easiest way to find the broken or worn out parts is to have someone you trust hop in the drivers seat. Once you have positioned yourself where you can see all of the Steering components your helper should shake the steering wheel back and forth with the engine running. While this is occurring you should be looking at the joints for movement. Typically the track bar is the first item to fail, but once a part has failed and wobble or shimmy has started, it tended to stress all of the other associated parts. Wobble can be caused by: worn joints in a track bar, a track bar that is bending or flexing, worn out tie rod ends, worn out control arm bushings, a bad or out of balance tire, Caster angle, worn out ball joints, or bad universal joints. With an 18yr old Cherokee it could be any single one of these or a combination of them.

If you are looking for the best on-road ride with off-road capabilities then you will want to replace your current RC lift with a Long Arm lift of your choice, Over The Knuckle steering kit (or High use a High Steer replacement Knuckle), and an upgraded track bar with double shear replacement mount. If you haven't done so already you will need longer brake lines with a 4.5" lift and an Slip Yoke Eliminator may be need if you end up with driveline vibrations. If you want to stick with a Short Arm lift drop brackets can be used to improve the ride quality, but you will want to replace all (4) control arms.

Good luck and I hope you get the wobble sorted out quickly.

88 XJ-Lifted, Locked, and on Jackstands
69 CJ5-In peices
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post #3 of 4 Old 11-09-2014, 05:03 PM
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1988 XJ Cherokee 
Join Date: Nov 2014
Location: Phoenix
Posts: 12
At 4.5" of lift, you probably need a longer track bar. An adjustable track bar. From what most Jeepers say, the track bar is responsible for most 'death wobble' issues, and that much lift certainly has your axle out of proper position.

..and all the things that JTM mentioned would be good to inspect.
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post #4 of 4 Old 11-09-2014, 07:58 PM Thread Starter
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1995 YJ Wrangler 
Join Date: Oct 2010
Location: california
Posts: 10
Replaced tie rod ends and drag link so far. I will replace the track bar next. Thanks again.
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