Symptoms
Violent front shake after a bump at speed, wandering and clunks. The MJ front end is the XJ's, with the same weak points: the track bar, tie-rod ends, drag link and steering box.
The fix, step by step
- With the engine running, have a helper turn the wheel back and forth while you watch the track-bar ends and bracket, the tie-rod and drag-link ends and the steering box for movement.
- Replace worn parts (an adjustable track bar re-centers a lifted axle), tighten everything at ride height, and check the unibody around the steering box for cracks.
- A steering stabilizer hides wobble; it doesn't cure it.
Tools & part numbers
- Helper
- pry bar
- tie-rod puller
- torque wrench
- alignment afterward
Where to buy the parts
Rancho RS62109 front adjustable track bar, TJ/XJ/MJQuadratec ↗Amazon ↗
Proforged tie rod end, YJ/TJ/XJ/MJQuadratec ↗Amazon ↗
Crown steering box seal kit, CJ/YJ/XJ/MJQuadratec ↗Amazon ↗
Hunting a used or discontinued part? Search eBay Motors for Jeep Comanche MJ parts →
Rated for a competent home mechanic with a decent tool kit. Confirm torque figures, fluids and procedures against the factory service manual for your VIN, support the truck on stands rather than a jack, and work at your own risk (disclaimer). Some parts links are affiliate links, which pay us a small commission at no cost to you.