4x4 Repairs Done right the first time

Our techs are ASE certified and experts in all things 4x4!

Schedule Appointment
Google
Google star 1Google star 2Google star 3Google star 4Google star 5.0.7
4.7
verified by Trustindex
Trustindex verifies that the company has a review score above 4.5, based on reviews collected on Google over the past 12 months, qualifying it to receive the Top Rated Certificate.

A 4x4 Repair Shop in Johnstown and Boulder Colorado Specializing in Jeep, Toyota, Ford, and Ram.

Our 4x4 Repair & Maintenance Services

INspections

Let's us perform a thorough inspection of your vehicle. Keeping your rig or daily driver healthy is our highest priority to ensure your vehicle stays on the road or off the road without issue. See PDF example of our Inspection Report.

Pre-Lift

Pre-purchase

Post-Adventure and Trailing

Schedule now
4x4 maintenance

Maintenance

Our automotive service and maintenance services help you keep your investment running the way it should and avoiding costly repairs.

4x4 Alignment

Tire & Rotation

Scheduled Maintenance

Oil & Lube

Programming & Flash Updates

Schedule now
4x4 repair shop

4x4 Repair Shop

Our ASE certified technicians will diagnose the problem you are experiencing and we will recommend the most effective solution.

Diagnostics

Suspension & Steering

Engine & Drivetrain

Death Wobble

Axle & Differential

Shock & Coil-over Rebuilds

Schedule now

Industry Leading Warranty

3 Year / 36k Miles

Nationwide warranty on parts and labor for 3 years or 36,000 miles on premium manufacturer and OEM parts giving you the peace of mind no matter where your destination or adventure takes you. Compare that to the standard dealership warranty of 12 months or 12,000 miles.

We got your back!

Our Promise & Warranty

Looking for a local 4x4 Repair Shop near Johnstown or Boulder Colorado you can trust?

Posted on Google Google
John Gonzales
8 October 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
New update, I have completed the 500 mile rear dif oil change and had the oil changed tire rotation and alignment. So far everything seems to be working great, I’ve been to other 4x4 shops but I am very happy with John’s 4x4, they’re the shop I trust and will continue taking my truck to them. So far what was done, oil change BG products, tire rotation, and valve cover gasket are great. I'm just waiting for uca bushings to complete alignment.
Posted on Google Google
Kelby Walsh
28 September 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
Trusted these guys when they told me what was good and bad with my car. No bs, no up sell, just good people doing a good job. Thank you team at rev for your excellent service and integrity!
Posted on Google Google
Ethan Hunt
24 September 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
Very friendly
Posted on Google Google
Nicholas Alexander
23 September 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
I had an issue with my 2023 Ram 2500 with the 6.7L Cummins, and I’m very glad I brought it to REV Outfitters in Johnstown. They were able to squeeze me in within a few days, while the dealerships in the area were quoting a minimum two-week wait. From the beginning, they listened to my concerns, quickly diagnosed the problem, and presented multiple options based on my needs and how much work I wanted to have done. They took the time to clearly walk me through the entire process, what the job would entail, and what I could expect. There was no ambiguity or pressure. They also provided recommendations for maintaining the truck and keeping it in great working condition going forward. Everyone I dealt with was kind, professional, efficient, and clearly took pride in the quality of their work. I would definitely recommend REV Outfitters to anyone looking for a knowledgeable and trustworthy shop, especially for diesel trucks.
Posted on Google Google
Matt Sendejo
22 September 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
Rev outfitters wad able to get me in and taken care of same week. Thanks for helping me out.
Posted on Google Google
Dave Schiff
14 September 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
God is this place good. I've taken a beater truck here that I've owned for 25 years to get repaired many times, when other shops don't want to bother. And I've brought in a brand new 3/4 ton to get customized to the point that my wife almost left me. In both cases (one vehicle I just wanted budget-friendly, effective repairs, and one where I wanted to go big), the repair and customization solutions they recommended and performed were incredible. There shouldn't be a place that can do flawless bread and butter repairs reliably and affordably, but also do exotic builds where budget is less of an issue. But that's what this place is. I would probably leave my wife for John's, except it's a shop and not a lady. And I'm not sure the marriage would hold up on paper.
Posted on Google Google
James Veal
13 September 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
They rebuilt my 6 year old icon suspension system and did a great. The job did take a little longer than expected but that was due to technical difficulty with needles for pressurizing the shocks, and the shop did a great job keeping me in the loop. Would 100% recommend this shop for any off-roading needs.
Posted on Google Google
Eric Edwards
5 September 2026
Google star 1Google star 2Google star 3Google star 4Google star 5
Great guys, great work! The fella that drives the Subaru was especially helpful. Highly recommend taking your vehicle here.

Meet Jeff!

Customer Video - Jeff

Our customers may come to us to lift and modify their vehicles, but they come back to us with all of their vehicles for repair and maintenance. We work hard to do a quality job and build trust.  

We do this by:

  • Being transparent and honest - offering digital documentation and pictures of issues. See PDF example of our Inspection Report.
  • Providing consultation so you best understand areas of concern or greater priority (because most of us are on a budget)
  • Taking the time to do it right, performing the work as expected, and offering great warranties
  • We invest in our technicians to ensure they are trained experts in their field

Whether it is Jeep repair, Toyota repair, Ford repair or any other 4x4 repair, we got you covered. With our ASE certified tech and over 150 years of combined experience as a 4x4 repair shop, we will always do our best to diagnose and solve your issues or concerns.

Schedule Appointment

Our 4×4 Repair Services

We offer a full suite of 4×4 repair and maintenance services designed specifically for trucks, Jeeps, and SUVs that see daily miles, rugged trails, big tires, and lifted suspension.

Suspension & Steering Repair

Your suspension absorbs impact, controls articulation, and keeps your tires in contact with the terrain. We diagnose and repair:

  • Worn shocks and struts
  • Ball joint and control arm wear
  • Track bar and sway bar link replacement
  • Steering gear box play, tie rod and drag link wear

Our crew ensures your lifting components work together, restoring smooth performance and predictable handling.


Diagnostics & Check Engine Repair

Modern 4×4 vehicles have complex computers and sensor systems that require precise diagnostics. Our technicians use advanced tools like Snap-On and OEM-grade scan tools to accurately diagnose:

  • Check Engine warnings
  • ABS and traction control faults
  • Active safety sensor calibrations
  • Transmission electronic codes

We pinpoint the real issue — not just the symptom — and communicate repair options with clarity and honesty.


Drivetrain, Transmission & Differential Service

Power delivery meets the pavement — or dirt — through your drivetrain. Whether it’s a leaking axle seal, differential noise, or transmission shifting issues, our team evaluates and repairs:

  • Differential rebuilds and seal replacement
  • Transfer case service
  • Driveshaft balancing and U-joint replacement
  • Clutch and transmission repairs

We help keep your 4×4 running smooth from transfer case to wheel hubs.


Brake System Inspection & Repair

Off-road driving, heavy loads, and mountain terrain place additional demands on your braking system. We handle:

  • Pad and rotor replacement
  • Caliper diagnosis and service
  • Parking brake inspection
  • Brake system flushing and fluid exchange
  • Brake upgrades to support other modification or driving habits (and locale...like I-70 and canyon roads)

You’ll feel confident stopping — whether you’re descending a mountain trail or navigating city traffic.


Alignment After Suspension & Lift Work

Once you install a lift kit or new suspension components, your alignment must be recalibrated. REV Outfitters offers precision 4×4 alignment services that correct toe, camber, and caster to optimize tire life, steering stability, and handling — even on lifted vehicles.


The REV Outfitters Difference

What sets our 4×4 repair shop in Colorado apart is our commitment to system-level expertise, honesty, and customer education. When you bring your vehicle to us, you’ll experience:

Transparent Communication

We explain issues in plain language, show inspection photos, and offer clear repair options — no guesswork, no pressure.

Skilled Technicians with Off-Road Passion

Our team doesn’t just fix vehicles — we build and drive them. That’s real world insight you won’t find at a typical repair shop.

Advanced Diagnostic Tools

We invest in professional-grade equipment designed to support complex 4×4 systems and modern vehicle computers.

Warranty Backed Service

Many of our repairs and replacements come with confidence-building warranties — because quality service should endure the miles.


Common Signs You Need 4×4 Repair

If you’ve noticed any of the following, it’s time for a professional evaluation:

  • Steering feels “loose” or wanders
  • Uneven or rapid tire wear
  • Strange noises under acceleration
  • ABS or traction lights stay on
  • Clunks or grinding over bumps
  • Vibration or shudder at highway speeds

Ignoring symptoms often leads to larger, more expensive problems down the road — especially on modified 4×4 rigs.


Our 4x4 repair shop techs in Johnstown and Boulder Colorado are highly trained to address customization and common issues like:

  • Mall crawler to rock crawler customization - we love it when our customers want to invest in their adventure and freedom!  We want to make you feel great and personalize your jeep so that it is unique to you and who you are.
  • Death wobble and steering wander - if you have experienced death wobble you know what it is and you never want to experience it again.   We guarantee that we will fix the issue.  See our death wobble blog for what death wobble is.
  • 4x4 Alignment - from stock to adjustable control arms and other major modifications. We rock with alignments!
  • Diagnostics - The dreaded check engine light or your jeep just isn't running like you think it should….we have the technology and skill to address your issues.

Death Wobble

(Unlike any other experience you've had!)

Death Wobble 4x4 Repair and Maintenance

Experiencing a vibration or hearing something of concern? Schedule a diagnosis.

  • Leaking fluid?
  • Hearing a noise? 
  • Got death wobble?
  • Vehicle pulling to one side or the road or the other?
  • Not sure…and you need someone to diagnose?
Contact Us

Schedule Your 4×4 Repair in Northern Colorado

Whether you’re prepping for an off-road trip, maintaining your rig, or repairing wear from daily driving and trail use, REV Outfitters is your trusted destination for professional 4×4 repair, lifted truck service, and off-road vehicle maintenance.

We proudly serve Boulder, Denver, Fort Collins, Loveland, Longmont, Greeley, Johnstown and surrounding Colorado communities. Contact us today or book your appointment online for reliable 4×4 repair you can count on.

Book Now — Keep your 4×4 performing reliably on pavement and the toughest trails.

Schedule Appointment

Boulder Johnstown