24-Hour Rush RepairCall (949) 400-2937Toll-Free (800) 821-3404Free pick-up & deliveryFree quotes
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24-Hour Rush Repair

Straight answers · Fontana, CA

Gear & Gearbox Repair FAQs

Questions from the gear bench — including the one about the gear nobody sells anymore. For a live failure, call (949) 400-2937.

Straight answers · Fontana, CA

The short version

We rebuild gearboxes, transmissions and differentials and manufacture gears and shafts in Fontana — including reverse engineering parts the original manufacturer discontinued. Inspection and quotes are free and documented with photos and video. Regular hours Monday–Friday 6 AM–5 PM; rush and emergency gear work runs 24 hours a day, every day of the year.

Gear repair shop LA Trucks and Tractors Fontana CaliforniaGear & Gearbox Repair FAQs · Fontana, CA

Our 8-step repair process

A clear path from the first call to a tested component or machine returned to work.

01

Pick-up

Coordinate free equipment or component pick-up when applicable.

02

Inspection

Disassemble and evaluate the complete failure.

03

Photos & video

Document condition and findings for a clear repair conversation.

04

Repair quote

Define the recommended work and quote before proceeding.

05

Approval

Confirm scope, urgency and the practical path forward.

06

Manufacturing

Machine, weld, rebuild or reverse engineer required components.

07

Testing

Verify operation and workmanship before release.

08

Shipment

Return the completed component or equipment to service.

Frequently asked questions

Can you really make a gear that is discontinued?

Yes. We measure the failed gear — or the mating parts and housing when the gear is destroyed — and manufacture a replacement. It is one of the most common jobs in this shop.

Do you rebuild gearboxes from outside the area?

Yes — industrial gearboxes are shipped to us from across Southern California and beyond for rebuilding and manufacturing work.

What does a gearbox rebuild include?

Teardown, documented inspection, renewal of bearings and seals, gear and shaft repair or manufacture, housing restoration as needed, correct assembly setup, and testing.

How is price determined?

After inspection, in a written quote that follows the documented findings. The inspection and quote are free.

Do you do emergency gearbox repair?

Yes — emergency and rush gear and gearbox work is a standing service, 24 hours a day, every day of the year.

Emergency breakdown? Call the 24-hour rush line.

(949) 400-2937

Schedule 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.

Schedule Service / Repair Order