Pick-up
Coordinate free equipment or component pick-up when applicable.
24-Hour Rush Repair
Serving Los Angeles from our Fontana shop
Gear Repair in Los Angeles
Los Angeles industry runs on gearboxes — manufacturing, logistics, aggregate, marine and municipal drives — and when a gearbox fails, replacement lead times are measured in months. LA Trucks and Tractors repairs gearboxes and manufactures gears at our Fontana shop, serving LA with free pick-up and delivery when applicable. Gear cutting, grinding and reverse engineering in-house: if the gear you need no longer exists, we can make it.
Serving Los Angeles from our Fontana shop
Gear work is this shop's founding trade
Industrial gearbox teardown and rebuilding; replacement gear manufacturing from samples or prints; truck and equipment differential rebuilding; pump and PTO drives; and failure analysis that tells you why the gear died before its replacement goes in. Every job is documented — photos, video, measurements — and quoted in writing before work begins.
Brands we serviceCaterpillarKomatsuJohn DeereCaseBobcatKubotaCumminsPeterbiltKenworthFreightliner
Gear Repair in Los Angeles · Fontana, CAWhy operators use a Fontana shop
Most shops replace gearboxes; this one was built to repair and manufacture them. That difference is why LA industrial customers ship drives to Fontana: the worn gear is measured and shown to you, the path — rebuild, remanufacture or replace — is quoted honestly, and the rush line answers every day of the year. Regular hours Monday–Friday, 6 AM–5 PM.
- Industrial gearbox rebuilding
- Gear manufacturing and reverse engineering
- Differential repair and rebuilding
- Failure analysis with documentation
- Rush gearbox service
Our 8-step repair process
A clear path from the first call to a tested component or machine returned to work.
Inspection
Disassemble and evaluate the complete failure.
Photos & video
Document condition and findings for a clear repair conversation.
Repair quote
Define the recommended work and quote before proceeding.
Approval
Confirm scope, urgency and the practical path forward.
Manufacturing
Machine, weld, rebuild or reverse engineer required components.
Testing
Verify operation and workmanship before release.
Shipment
Return the completed component or equipment to service.
Frequently asked questions
Do you have a shop in Los Angeles?
No — our shop is in Fontana, and we serve Los Angeles gear and gearbox customers from there with free pick-up and delivery when applicable.
Can you make a gear that is no longer available?
Yes — gear manufacturing and reverse engineering from a sample or print are core capabilities of this shop.
What are your hours?
Regular shop hours are Monday–Friday, 6 AM–5 PM. For breakdowns that cannot wait, our 24-hour rush and emergency repair service runs every day of the year.
Related services
Emergency breakdown? Call the 24-hour rush line.
(949) 400-2937Schedule service or open a repair order
Request a service call.
Include the make, model, symptoms, location, urgency and preferred service time. Your details open in a text to John so you can review them before sending.