JEEP SUSPENSION REPAIR & SERVICE
Coil Spring, Control Arm, Track Bar & Complete Suspension Service for Wrangler, Gladiator & Cherokee Platforms
MST Motorsports provides expert Jeep suspension repair and service in St George, Washington, and throughout Southern Utah. Jeep suspension systems — especially the solid axle configurations found in Wranglers and Gladiators — are purpose-built for off-road capability, but they require specialized knowledge to service and modify correctly.
Southern Utah's terrain is a Jeep paradise, but the demanding trails at Sand Hollow, Hurricane Cliffs, and the surrounding desert put extraordinary stress on suspension components. From worn control arm bushings and track bar issues to death wobble diagnosis and lift kit installations, our technicians understand Jeep suspension architecture inside and out.
Coil Springs &Lift Kit Service
Jeep coil springs support vehicle weight and determine ride height, articulation, and load capacity. Factory springs can sag over time — especially on Jeeps loaded with bumpers, winches, and armor. Sagging springs reduce ground clearance, decrease articulation, and can bottom out the suspension on trail obstacles.
We install coil springs and complete lift kit systems from manufacturers like Teraflex, Rough Country, and others. Proper lift installation goes far beyond bolting on taller springs — it requires attention to control arm geometry, track bar alignment, brake line clearance, bump stop adjustment, and post-installation alignment. We handle all of these details to ensure your lifted Jeep handles safely on and off road.
Control Arms &Track Bar Service
Jeep solid axle suspensions use control arms to locate the axles and a track bar to center them under the vehicle. These components and their bushings are critical for proper handling, alignment retention, and preventing the dreaded death wobble that affects many Jeeps — particularly lifted ones.
On lifted Jeeps, factory control arms create incorrect caster and pinion angles that affect steering, drivability, and driveline vibration. We install adjustable control arms that allow proper geometry correction after lifting. Track bar condition is equally critical — a worn track bar bushing or bent track bar is one of the most common triggers for death wobble. We inspect, repair, and replace track bars and install heavy-duty replacements designed for lifted applications.
Death WobbleDiagnosis & Repair
Death wobble is a violent oscillation of the front axle that occurs at highway speeds, usually triggered by a bump or road imperfection. It is not caused by a single component — it's the result of excessive play or wear in the front-end system that allows the axle to oscillate unchecked. Simply adding a steering stabilizer is not a fix; it only masks the underlying problem.
Our diagnostic process systematically inspects every front-end component: track bar and bushings, tie rod ends, drag link, ball joints, wheel bearings, unit bearings, control arm bushings, and steering box. We identify and replace all worn components, then verify alignment and steering geometry to eliminate the wobble at its source.
Sway Bars &Stabilization Systems
Sway bars (anti-roll bars) control body roll during cornering and lane changes. On trail-capable Jeeps, sway bar disconnects allow the axles to articulate freely off-road while reconnecting for on-road stability. Both manual quick-disconnect links and electronic disconnect systems require periodic service to maintain reliable operation.
We service sway bar links, bushings, electronic disconnect motors, and the sway bars themselves. For lifted Jeeps, we install extended sway bar links that accommodate the increased suspension travel and maintain proper sway bar geometry. Properly functioning sway bars are critical for safe on-road handling — especially on lifted Jeeps with a higher center of gravity.
Solid Axle Alignment &Caster Correction
Jeep Wrangler (JK, JL) and Gladiator (JT) solid axle alignment is fundamentally different from independent suspension alignment. On a solid axle, both wheels are connected to the same axle housing — camber is determined by the axle itself and isn't independently adjustable. The primary angles we adjust are toe (via tie rod) and caster (via control arm length).
Lifting a Jeep changes the angle of every control arm, which directly affects caster. A 2.5-inch lift can reduce caster by 2+ degrees — enough to make the Jeep feel unstable at highway speeds with poor steering return. We align lifted Jeeps equipped with adjustable control arms from Teraflex, Synergy, Metalcloak, and Rock Krawler by setting caster to the optimal angle for the lift height, then adjusting toe. Cherokee (XJ) uses the same solid-axle approach; Cherokee (KL) and Grand Cherokee (WK2, WL) use independent front suspension and follow the same alignment principles as lifted trucks. Every Jeep alignment runs on our Hunter Hawkeye Elite with a before/after printout.
Frequently AskedQuestions
What causes Jeep death wobble?
Death wobble is typically caused by worn or loose front-end components — most commonly the track bar, tie rod ends, ball joints, or wheel bearings. A worn track bar bushing is one of the most frequent culprits. Lifted Jeeps are more susceptible because the modified geometry increases stress on these components. We systematically inspect all front-end components to identify and correct the root cause.
How often should Jeep suspension be inspected?
For Jeeps used off-road in Southern Utah, we recommend suspension inspection every 15,000–25,000 miles. Jeeps that regularly run trails at Sand Hollow or in the red rock areas should be inspected more frequently. Key items include control arm bushings, track bar condition, ball joints, and coil spring condition.
Can you install a lift kit on my Jeep?
Yes. We install lift kits from leading manufacturers including Teraflex, Rough Country, and others. Proper lift kit installation includes correct control arm geometry, track bar adjustment or replacement, brake line extension verification, driveshaft angle check, and post-installation alignment.
Do you service Jeep sway bar disconnects?
Yes. Electronic and manual sway bar disconnect systems are common on Wranglers and Gladiators. We service, repair, and install sway bar disconnect systems and verify proper operation both connected and disconnected. Proper sway bar function is critical for on-road stability.
How is Jeep alignment different from regular alignment?
Jeep Wranglers and Gladiators use solid front and rear axles — unlike most modern vehicles with independent suspension. Solid axle alignment adjusts toe and caster through the control arms and track bar, not through camber bolts or adjustable strut mounts. This requires different knowledge and approach than standard passenger car alignment.
Can you align a lifted Jeep with adjustable control arms?
Yes. We commonly align Jeeps with aftermarket adjustable control arms from Teraflex, Synergy, Metalcloak, Rock Krawler, and others. These adjustable arms allow us to correct caster after lifting — something that isn't possible with factory fixed-length arms on significant lifts.
My Jeep pulls to one side after wheeling. Do I need an alignment?
Possibly, but pulling after off-road use can also indicate a bent tie rod, shifted track bar, worn ball joint, or damaged steering component. We inspect the front end before aligning so any adjustment corrects the real issue rather than covering a damaged component. If components are damaged, we repair those first.
What Jeep models do you service?
We service all Jeep models including Wrangler (JK, JL), Gladiator (JT), Cherokee (XJ, KL), Grand Cherokee (WJ, WK, WK2, WL), and classic CJ platforms. Our technicians understand the unique suspension architecture of each platform.
Ready to GetStarted?
Call MST Motorsports today or schedule your appointment online. Serving Washington, St George, Hurricane, and all of Southern Utah.