Washington UT's 4x4 & 4WD Specialists
Lift kits, suspension, drivetrain and alignment for 4x4 and 4WD trucks, Jeeps, Broncos and off-road SUVs in Washington, Utah.
MST Motorsports provides professional 4x4 repair and 4x4 service in Washington, Utah for trucks, Jeeps, Broncos and off-road SUVs. Our factory-trained, certified technicians are 4x4 and 4WD specialists with more than 80 years of combined experience, and qualifying automotive repairs are backed by our 36-month/36,000-mile nationwide warranty on parts and labor.
What We Handle
Lift Kit Installation
Full suspension lifts, leveling kits and body lifts, with geometry correction included so the 4x4 drives correctly at its new ride height.
4WD Drivetrain Service
Transfer cases, front and rear differentials, locking differentials and axle shafts — the 4x4 repair work Southern Utah terrain makes necessary.
Suspension & Steering
Control arms, ball joints, tie rods, track bars, drag links, and bushings. Stock to full custom builds — we handle the full spectrum of 4x4 undercarriage work.
Post-Lift Alignment
Top-of-the-line Hunter Hawkeye Elite alignment after every lift. Caster, camber, and toe set for your actual ride height.
Skid Plate & Protection
Underbody protection installed right — rock sliders, skid plates, and differential covers for the rocks, sand, and desert terrain around Sand Hollow and beyond.
Pre-Trip Inspection
Full drivetrain, suspension and steering inspection before a run at Sand Hollow, Moab or anywhere off pavement.
Platforms We Build & Service
Trucks
- Ford F-150, F-250, F-350, Raptor
- Ram 1500, 2500, 3500, Power Wagon
- Chevy/GMC Silverado & Sierra
- Toyota Tacoma & Tundra
Jeep
- Wrangler JK, JL & Gladiator JT
- Grand Cherokee & Wagoneer 4x4
- Death wobble diagnosis & repair
- Lift kits, lockers, full builds
Bronco
- 6th gen Bronco & Bronco Raptor
- HOSS suspension service & upgrades
- Coilover and lift kit installs
- Alignment and geometry correction
Off-Road SUVs
- 4Runner, Land Cruiser & Grand Cherokee
- Lift and leveling kits on independent front ends
- Driveline angle and CV angle correction
- Backcountry pre-trip inspection
What Changes When You Lift It
Lifted Geometry
Caster, pinion angle and CV angle all need correction after a lift, so our lifted truck mechanics measure them and set them for the vehicle's actual ride height. Once geometry moves past the factory adjustment range, parts wear quickly.
Drivetrain Stress
Lockers, larger tires and added torque load axles and transfer cases well beyond stock service specifications. We build and repair 4x4 drivetrains for the loads they actually carry off-road.
Terrain-Specific Setup
A build for Sand Hollow sand is set up differently from a build for Hurricane Cliffs rock. We set suspension, alignment and drivetrain for the terrain the vehicle actually runs.
4WD and Four-Wheel Drive Systems We Service
Our 4x4 mechanics service part-time systems with a manual transfer case, electronic shift-on-the-fly systems, full-time and automatic 4WD, and all-wheel drive crossovers. 4x4, 4WD and four-wheel drive describe the same hardware, and the work is the same whichever name is on the badge.
- Transfer case fluid service, shift motor and encoder diagnosis, chain and bearing wear
- Front and rear differential service, ring and pinion setup, limited-slip and locker rebuilds
- Front axle actuators, vacuum and electronic disconnects, hub and unit bearing replacement
- CV axles, driveshafts, slip yokes, U-joints and carrier bearings
- 4WD warning lamps and no-engage faults read with OEM-level scan tools
- Drivetrain vibration diagnosis after a lift, tire size change or gear swap
4x4 Suspension and Off-Road Alignment
Off-Road Alignment
An off-road 4x4 is aligned at its actual ride height on the tires and wheels it runs. A lift changes caster and thrust angle and oversized tires change scrub radius, so the factory alignment spec no longer matches the geometry. We measure on top-of-the-line Hunter Hawkeye Elite alignment equipment and set caster and toe for the build. Details on the lifted truck alignment page.
4x4 Suspension Work
Coilovers, leaf packs, long-travel and bypass shocks, control arms, track bars, sway bar disconnects and steering stabilizers. Shocks are rebuilt and re-valved in-house on the shock bench, so valving can be matched to the terrain the vehicle actually runs. Truck, Jeep and SUV suspension work is covered on the truck suspension and Jeep suspension pages.
Cooling for Desert Use
Cooling system service on a 4x4 matters most in July, when crawling means maximum engine load with minimum airflow. Towing to the trailhead and then working the vehicle in the heat compounds it.
We service and repair radiators, cooling fans and fan clutches, thermostats, water pumps, hoses and coolant on trucks, Jeeps, Broncos and SUVs. Towing, a heavy build and larger tires all raise cooling demand, and the system is evaluated against that duty cycle.
Trail-Readiness Inspections
A trail-readiness inspection is part of our 4x4 service before a weekend at Sand Hollow, a run through Hurricane Cliffs, or a trip out past Virgin and Leeds. Our technicians go through the front end and steering, suspension and shocks, brakes, driveline angles and u-joints, tires, fluids and cooling.
You get the findings as a digital inspection with photos sent to your phone, and you decide what to address.
Maintenance for Modified Vehicles
Maintenance on a modified 4x4 covers the ordinary work — oil and fluids, brakes, cooling and diagnostics — with the inspection focus set for how the vehicle is built. Wear patterns change once ride height and tire size change, steering and driveline components carry more load, and brakes work harder.
Lift and leveling kits, coilovers, springs, upper control arms, track bars and shock packages are installed with brake line clearance, bump stop setup, driveline angles and hardware torque treated as part of the work. Shocks are rebuilt in house — Fox, King, Elka and Walker Evans — disassembled, cleaned, re-sealed, re-valved when requested and nitrogen-charged on site.
Qualifying automotive repairs are backed by our 36-month/36,000-mile nationwide warranty on parts and labor. Full detail is on maintenance for lifted and modified vehicles, and package options on lift kit installation. Digital vehicle inspections with photos, shuttle service, after-hours drop-off and pickup, two-way texting and online booking are available, and we are open Mon–Fri: 8:00am – 5:00pm. Financing is available on qualifying service through Acima, Affirm, Klarna, Sunbit, Synchrony Car Care and Snap Finance, including larger repairs and upgrades.
Serving Washington UT & All of Southern Utah
MST Motorsports is based at 987 S 1900 East, Washington, UT 84780, between St. George and Hurricane, minutes from I-15 and SR-9. The shop is a short tow from Sand Hollow and a convenient stop for daily-driver work on the way to St. George or Hurricane.
Frequently Asked Questions
What is a 4x4 specialist vs a regular mechanic?
A 4x4 specialist, or 4WD mechanic, works with lifted geometry, the drivetrain stress larger tires and lockers create, and the interaction between suspension, alignment and drivetrain. On a lifted vehicle, geometry correction, pinion angle and CV joint angles are measured and set rather than assumed. That is the difference between a lift that lasts and one that wears parts out early.
Do you service stock (non-lifted) 4WD vehicles?
Yes. Transfer cases, differentials, front axle service, and alignment on stock 4WD trucks and Jeeps are all part of our regular service menu.
How often should a lifted 4x4 be realigned?
After any suspension change, tire size change, or if you notice uneven wear, pulling, or a wandering steering feel. At minimum, we recommend an alignment check annually if you're regularly off-road — impacts and terrain shift angles faster than highway driving.
Do you work on diesel 4x4 trucks?
Yes — Ford Power Stroke, Ram Cummins, and Chevy/GMC Duramax all come through the shop for drivetrain, suspension, and alignment work. Heavy diesel 4x4s place even more stress on axles and suspension components, so proper setup matters even more.
Do you only work on Jeeps and Broncos, or on other 4x4s too?
All of them. Off-road capability is not one brand: we build, align and maintain Jeeps, Broncos, lifted trucks and off-road SUVs including 4Runner, Land Cruiser and Grand Cherokee. Half-ton and three-quarter-ton pickups running 35-inch and 37-inch tires are as much a part of the daily work here as solid-axle Wranglers.
What is Road Force balancing and why does it matter on off-road tires?
Road Force balancing applies a loaded roller against the tire to simulate the road, which reveals stiffness variation in the tire and how the tire and wheel are matched to each other. A standard spin balance corrects weight distribution only. Heavy off-road tires vary more than street tires, so this is where most highway vibration complaints on 35-inch and 37-inch tires are resolved.
Do you rebuild shocks in house?
Yes. Fox, King, Elka, and Walker Evans shocks are disassembled, cleaned, re-sealed, re-valved when requested, and nitrogen-charged on site. That work happens on our own bench in Washington.
Will modifications void the maintenance work you do?
No. Lifted and modified vehicles are routine maintenance work here, with the inspection focus shifted to driveline angles, u-joints, steering component wear, ball joints, brake capacity relative to tire size, and cooling under load. Custom and modified work we perform is backed directly by MST Motorsports.
What should I have checked before a weekend at Sand Hollow?
We offer a pre-ride, trail-readiness inspection. You get the findings as a photo-documented digital inspection and decide what to address.
Does desert heat require anything different from a 4x4 cooling system?
It requires the system to be in good condition, because low-speed trail work in summer means high engine load with very little airflow through the radiator. We service and repair radiators, fans and fan clutches, thermostats, water pumps, hoses, and coolant. If you tow or run a heavy build, mention it and we will evaluate the system for that duty cycle.
Book Service
Call (435) 256-8899 or . Serving Washington, St George, Hurricane, and all of Southern Utah.
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