Collection
Where it applies, we arrange collection of your equipment or component at no charge.
24-Hour Rush Repair
Fontana, CA · Transmission bench
Truck Transmission Repair in Fontana
Transmissions seldom die without warning — they announce trouble first through slipping, grinding, whining and harsh shifts, and then give up under load. Our Fontana shop rebuilds truck transmissions the proper way: a complete teardown, wear measured and documented, clutch packs, bearings, gears and shafts replaced or manufactured as the job requires, and a road test before the truck is released.
Fontana, CA · Transmission bench
Manuals, automatics and everything connected to them
Manual and automatic truck transmissions get rebuilt here, along with the driveline around them: clutches, flywheels, differentials, driveshafts and transfer cases. Because our own gear shop cuts and manufactures gears and shafts in-house, a transmission carrying a damaged or discontinued gear counts as a rebuild candidate here instead of a write-off.
Makes we work onAllisonEatonFullerMeritorDana SpicerZFDetroitAisin
Truck Transmission Repair in Fontana · Fontana, CACatching the problem while it is still small
Slipping under load, engagement that arrives late, grinding on the way into gear, a metallic noise in neutral, or fluid that smells burnt — any one of those is reason enough to inspect now, while the rebuild is still the inexpensive version. Regular hours run Monday–Friday 6 AM–5 PM, the rush line answers around the clock, and pick-up, delivery and quotes are free.
- Rebuilding transmissions — manual and automatic alike
- Clutch replacement and flywheel servicing
- Rebuilding differentials
- Repairs to driveshafts and drivelines
- Manufacturing gears and shafts that are obsolete
How a repair moves through our shop — eight steps
From your first phone call through final testing, this is the route every job follows before it goes back into service.
Inspection
We take the unit apart and assess the full extent of the failure.
Photo & video record
Condition and findings get recorded, so the repair conversation stays clear and honest.
Written quote
The work we recommend gets defined and priced before anything proceeds.
Your approval
Scope, urgency and the sensible way forward get confirmed with you.
Making & rebuilding
Components get machined, welded, rebuilt or reverse-engineered as the job requires.
Testing
Operation and workmanship are verified before anything is released.
Return
The finished component or machine goes back into service with you.
Questions customers ask us
Will you rebuild an automatic truck transmission?
Yes — automatics and manuals both get rebuilt here, along with differentials and driveline components.
My transmission slips only when it is hot and loaded. Is failure coming?
That pattern is a textbook early warning. Getting it inspected now usually costs a fraction of the tow bill and collateral damage that come later.
More services from our shop
Truck down right now? Reach the around-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 the truck is doing, where it sits, how urgent it is, and when you would like us there. The form opens everything as a text message to John, so you can check it over before you hit send.