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San Diego Gear & Axle

When you need the best, look nowhere else. We deliver perfection. Every time.

WHO we are

Welcome to San Diego Gear & Axle, where for over two decades we've been providing top-tier drivetrain services to the San Diego community. From our shop in El Cajon, we specialize in everything from complex differential repairs and axle replacements to performance-enhancing regearing for all types of vehicles.

Whether you're hitting the trails in your Jeep, burning rubber on the track, or simply need a reliable daily driver, our team has the expertise to ensure your drivetrain is in peak condition. We are passionate about quality workmanship and building lasting relationships with our customers.

For professional service you can trust, contact San Diego Gear & Axle today!

What we do

Differential Repair & Rebuilding

Is your vehicle making a whining or grinding noise from the axle? It could be a sign of differential trouble. Our experts can accurately diagnose and perform complete differential repairs, from replacing worn-out bearings and seals to expertly setting up a new ring and pinion. We service open differentials, limited-slip differentials (LSD), and lockers to restore quiet, reliable performance.

  • Ring & Pinion Gear Setup
  • Bearing & Seal Replacement
  • Complete Differential Overhauls
  • Leak Diagnosis & Repair

Professional Regearing Services

If you've installed larger tires on your truck or Jeep, you've likely noticed a loss of power and poor fuel economy. Regearing is the solution. We specialize in professional regearing services to restore your vehicle's performance and take the strain off your transmission. We'll help you select the perfect gear ratio for your vehicle and driving style, whether you're focused on rock crawling, highway cruising, or towing.

  • Improve Performance with Larger Tires
  • Enhance Towing Capability
  • Increase Acceleration
  • Precision Installation for All Major Axle Brands

Axle Repair & Replacement

Your axles are critical for transferring power to the wheels. Whether you have a bent axle shaft from an off-road adventure or worn-out components on your daily driver, we provide comprehensive axle repair services. We can replace axle shafts, bearings, and seals to ensure your vehicle is safe and dependable on and off the road.

  • Front & Rear Axle Service
  • Axle Shaft Replacement
  • Axle Housing Straightening & Reinforcement
  • Upgraded Chromoly Axle Shafts

Locker & Limited-Slip Differential Installation

For the serious off-road enthusiast, traction is everything. We install a wide variety of locking differentials and limited-slip units to give your 4x4 the ultimate advantage on the trail. A locker ensures that 100% of the power is sent to both wheels, allowing you to conquer the toughest obstacles. Let us help you choose and install the right traction-aiding device for your rig.

  • Mechanical Lockers, Air Lockers & E-Lockers
  • Limited-Slip Differential Upgrades
  • Expert Installation for Jeeps, Trucks, and all 4x4s

High-Performance & Custom Drivetrains

Putting serious power to the ground requires a drivetrain built to handle it. We design and build custom drivetrain solutions for high-performance vehicles, including drag cars, street rods, and race trucks. From fabricating custom axle housings to installing components that can withstand extreme torque, we have the expertise to build a bulletproof foundation for your project.

  • Custom Axles & Drivetrains
  • Performance Differential Upgrades
  • Solutions for Drag Racing, Drifting & Road Racing
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Where we are

We're here to help with all your gear and axle needs. Whether you're ready for a major upgrade or need a professional diagnosis, our team is ready to provide the expert service you deserve.

Get in Touch

Shop Hours

Hours: Monday - Friday: Saturday: By Appointment Only Sunday: Closed