Your vehicle's drivetrain matters! Let the differential repair specialists take care of any repairs or upgrades you need.
At John's 4x4 & REV Outfitters, we provide a full range of gear and axle services for automotive, off-road and 4×4 vehicles, including Jeep, Toyota, Ford, Ram, Chevys, and more. Whether you’re in Denver, Boulder, Erie, Fort Collins, Loveland, Johnstown, or anywhere in Northern Colorado, we have a location and a team of experts that specializes in differential repair and re-gearing ensuring your vehicle’s drivetrain is optimized for performance and reliability in any terrain.
Differential Repair & Service
At your local John's 4x4 & REV Outfitters near you, we’ll diagnose the problem, recommend the necessary differential repairs, and also provide options for upgrades depending on your vehicle and use.
Re-Gearing & Lockers Installation
We install a variety of premium gears and axle components from trusted brands such as Eaton, ARB, Revolution Gear and Axle, Yukon Gear and Axle, and many others.
Axles
Need a better or stronger axle? Full replacement with a Dana Spicer or G2 option? Reinforce your existing axle with quality welded trusses and more!
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!
Learn MoreOur Differential and Axle Services
Differential Repair
- ASE-certified technicians with years of experience
- State-of-the-art diagnostic tools for accurate problem detection
- OEM and high-quality aftermarket parts for long-lasting repairs
- Transparent pricing with no hidden fees
- Warranty on parts and labor for added peace of mind
- Customer-focused service that puts your needs first
Re-Gearing & Lockers
- Premium gears and lockers by Revolution, Yukon, ARB, Eaton, and more
- All re-gears include: Front and rear ring and pinion gear set, Master install kits, New differential bearings, New front axle seals, Replace with new gear oil, Labor - Installation Done Right
- Installing the pinion shaft and bearings, setting the right tolerances, and checking for gear tooth contact pattern
- 3 year / 36k Mile warranty on parts and labor labor
Preventative Maintenance for Your Drivetrain & Differential
- Regular drivetrain inspections to catch small issues early
- Differential fluid service every 30,000 to 50,000 miles
- Drive shaft and U-joint lubrication to prevent excessive wear
- Transfer case maintenance for AWD and 4WD vehicles
- Axle and bearing checks to ensure smooth operation
Looking for an Differential Repair Shop you can trust?
Differential Repairs with Transparency & Ease
See your inspection details with pictures and video. Work on your vehicle doesn’t begin until you give the go ahead.
