01
Differentials
Rear end whine, grinding, leaks, or metal in the oil? We find the cause before replacing parts.
- Ring & pinion setup
- Bearings & seals
- Leaks
- Noise diagnosis
DRIVETRAIN
EST. 2006 / EL CAJON, CA
SD GEAR & AXLE
Differentials. Gears. Axles.
Specialist drivetrain work in El Cajon.
01 Diagnose
Noise, leaks, vibration
02 Fix
Gears, axles, lockers
03 Deliver
Quiet, strong, built right
WHO WE ARE
NO GUESSWORK.
PRECISION SETUP.
BUILT RIGHT.
2006 Established
El Cajon CA
1000+ Customers served
Differentials / Regearing / Axles / Lockers / Fabrication
San Diego Gear & Axle is a drivetrain specialty shop in El Cajon serving trucks, Jeeps, 4x4s, daily drivers, towing vehicles, trail rigs, and performance builds across San Diego County.
Good drivetrain work comes down to diagnosis and precision setup: backlash, preload, gear pattern, fitment, and the small details that decide whether it runs quiet and holds up.
Whether you're chasing noise or vibration, regearing after a tire-size change, installing lockers, repairing axle parts, or building something custom, we diagnose the problem, explain the options, and do the work right.
No guesswork. No wasted parts. Drivetrain built right.
We're racers at heart. We spend weekends at the track because speed is part of who we are, but speed does not matter if the car will not hold up.
We started from the same frustration a lot of people know: work that was not set up right, parts that did not last, and builds that could not be trusted when it mattered.
SD Gear & Axle exists to build drivetrain work we would trust in our own cars.
That standard is why some of the hardest-running names in motorsports trust the work.
Built to hold up when it matters.
WHY WE DO IT
RACERS
AT HEART.
BUILT FOR SPEED.
WHAT WE DO
GEAR MESH.
TORQUE.
TRACTION.
Noise, leaks, wrong gearing, worn axle parts, or a build that needs more than bolt-on parts. We diagnose the problem, explain the options, and do the drivetrain work right.
02
Regearing
Larger tires can make the vehicle feel weak and burn more fuel. The right ratio can bring back drivability, towing power, and fuel economy after tire-size changes.
- Tire-size changes
- Towing power
- Fuel economy
- Ring & pinion setup
03
Axles
Bent shaft, worn bearings, leaking seals, damaged housing. We repair the axle parts that keep the vehicle moving.
- Front & rear axles
- Axle shafts
- Bearings & seals
- Housing repair
04
Lockers & Limited-Slip
Need more bite off-road or better traction on the street? We install lockers and limited-slip for how the vehicle gets used.
- Air lockers
- E-lockers
- Mechanical lockers
- Limited-slip
05
Fabrication
Custom housings, brackets, axle work, and fabrication when bolt-on parts are not enough.
- Custom housings
- Brackets
- Axle builds
- Built to fit
WHERE WE ARE
TELL US
WHAT IT'S
DOING.
Call the shop. Tell us the vehicle, the problem, and what you want done.
Shop address
1488 Pioneer Way #9El Cajon, CA 92020
Contact
Shop hours
Monday - Friday Saturday By appointment only Sunday Closed