Collection
Where it applies, we arrange collection of your machine or component at no charge.
24-Hour Rush Repair
The gear bench · Fontana, CA
Gear & Gearbox Repair in Fontana
Once a gearbox gives up, everything behind it — the line, the truck, the machine — grinds to a halt. At our Fontana gear shop we rebuild industrial gearboxes and driveline assemblies, cut replacement gears and shafts under our own roof, and reverse engineer components the market no longer offers — which turns a failed gearbox into a repair job instead of a scrapped machine.
The gear bench · Fontana, CA
A working gear shop — not a bench for swapping parts
Industrial gearboxes, differentials and transmissions are rebuilt here; gears are cut and re-cut, shafts are manufactured, housings and bearing fits are restored, and planetary drives and final drives are brought back to life. Before any quote reaches you, the component has been stripped, assessed and recorded on photo and video.
For plants keeping older equipment alive, reverse engineering often decides everything: when the manufacturer has dropped a gear from production, we take measurements from the failed part and manufacture its replacement to specification.
Brands we look afterFalkEatonDana SpicerAllisonFullerMeritorFlenderSEW-EurodriveSumitomoCaterpillar
Gear & Gearbox Repair in Fontana · Our Fontana, CA workshopGear work for industry in Fontana and across Southern California
Steel, aggregate, recycling and manufacturing operations in Fontana work their gearboxes hard, and industry across Southern California sends components to the few shops that can genuinely cut gears. Ours is one of them — in-house at 14166 Whittram Ave, open for regular hours Monday–Friday 6 AM–5 PM, with 24-hour rush service every day of the year and pick-up, delivery and quotes all free.
- Rebuilding industrial gearboxes
- Cutting new gears and re-cutting worn ones
- Making shafts and repairing them
- Rebuilding differentials and transmissions
- Planetary and final-drive repairs
- Reverse engineering gears that are obsolete
How every repair moves through the shop: 8 steps
From your first phone call through final testing, here is how a job moves through the shop.
Inspection
We strip the unit down and assess the full extent of the failure.
Photo & video record
We photograph and film what we find, so the repair discussion is based on evidence.
Written quote
You receive a written price for the recommended scope before any work starts.
Approval
Together we agree the scope, the priority and the most sensible way ahead.
Manufacturing
Any parts the job needs are machined, welded, rebuilt or reverse engineered in-house.
Testing
Nothing leaves until operation and workmanship have both been checked.
Return delivery
The finished machine or component goes back to you ready for service.
Questions customers ask us
Can you produce a gear that nobody sells anymore?
Yes. Reverse engineering discontinued components sits at the heart of this shop — the failed gear gets measured and a replacement gets manufactured from those measurements.
Do differentials and transmissions get rebuilt here as well?
They do — differentials, transmissions both manual and automatic, planetary drives and final drives, covering trucks as well as heavy equipment.
How do you arrive at the price?
Only once the unit has been torn down and inspected, with the failure recorded on photos and video. Your quote arrives before any work begins and costs you nothing.
Will you accept gear work sent from beyond Fontana?
Yes — components arrive here from all over Southern California and further afield, and where it applies, pick-up and delivery are free.
More services you may need
Down right now? Ring the round-the-clock rush line.
(949) 400-2937Book a service visit or start a repair order
Ask for a service visit.
Tell us the make and model, what it is doing, where it sits, how urgent it is and when suits you. The form opens your details as a text message to John, so you can check everything before you hit send.