Services we offer!
Truck repair
Engine repair
Trailer repair
Transmission repair
Heavy duty towing services
Parts
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Truck Repair services
DPF (Diesel Particulate Filter) Cleaning & Repair
- DPF regeneration
- DPF replacement
- Emissions system repairs
Engine Diagnostics and Check Engine Light Repairs
- ECM fault code retrieval
- Sensor testing
- Performance troubleshooting
- No-start and derate condition diagnosis
DPF (Diesel Particulate Filter) Cleaning & Repair
- DPF regeneration
- DPF replacement
- Emissions system repairs
EGR Valve & EGR Cooler Repair
- Cleaning or replacing EGR components
- Fixing emissions-related failures
Cylinder Head Repairs
- Head gasket replacement
- Valve repairs
- Camshaft inspections
- Cylinder head rebuilds
- Frequently required after overheating or coolant loss.
Turbocharger Repair & Replacement
- Turbo rebuilds
- Boost leak repairs
- Turbo replacement
Fuel Injector Repair & Replacement
- Injector testing
- Injector replacement
- High-pressure fuel system service
DOT and BIT Inspections
- Federal and California compliance inspections.
- Repairing defects found during inspections.
Brake System Repairs
- Air brakes, wheel-end components, brake chambers, and ABS-related repairs.
Suspension Repairs
- Air ride systems, springs, shocks, bushings, and suspension alignment work.
Drivetrain and Differential Repairs
- Driveshafts, U-joints, axles, differentials, and power-transfer components.
Trailer Repair services
Suspension Repair
- Air ride suspension repairs
- Leaf spring replacement
- Suspension component repairs and adjustments
Body repair
- Sidewall damage repair
- Corner post repairs
- Bottom rail replacement
- Collision damage repairs
Brake system repair
- Brake chamber replacement
- Air brake repairs
- Brake adjustment and inspections
Reefer (Trailer Refrigeration Unit) Repair
- Carrier and Thermo King unit diagnostics
- Refrigeration maintenance and repairs
- APU service
Axle and spindle repair
- Axle replacement
- Spindle repair and machining
- Wheel-end component repairs
Trailer alignment
- Tractor and trailer alignment
- Tracking corrections to reduce tire wear
Lift gate repair
- Lift gate replacement
- Hydraulic system repairs
- Maxon warranty work
Tire service
- Tire repairsTire replacement
- Wheel balancing
Welding and fabricacion
- Aluminum welding
- Stainless steel welding
- Structural trailer repairs
King pin and floor repair.
- King pin replacement
- Trailer floor repair/replacement
- Structural integrity restoration
Transmission Repair services
Clutch Replacement
- Worn clutch discs
- Pressure plate replacement
- Release bearing repairs
- Common on manual Eaton transmissions.
Transmission Diagnostics
- Reading fault codes
- Shift performance analysis
- Electronic transmission troubleshooting
- Computer diagnostics is one of GSTTR’s advertised services.
Transmission Rebuilds
- Replacement of bearings, gears, synchronizers, and seals
- Complete teardown and overhaul after major failure.
Automated Manual Transmission (AMT) Repairs
- Detroit DT12 repairs
- Eaton UltraShift issues
- Shift actuator replacement and calibration.
Transmission Fluid Leak Repairs
- Input shaft seals
- Output shaft seals
- PTO gasket leaks
- Housing gasket replacement.
Shift Actuator Replacement
- Electric and pneumatic actuators
- Common on DT12 and automated Eaton transmissions
- Resolves hard-shifting and no-shift conditions.
Synchronizer and Gear Repairs
- Grinding between gears
- Hard shifting complaints
- Worn synchronizer replacement
Driveline and Input/Output Shaft Repairs
- U-joint damage
- Yoke replacement
- Transmission output shaft wear
- Often performed with drivetrain repairs.
Transmission Control Module (TCM) Repairs
- Wiring repairs
- Sensor replacement
- Software updates and programming
- Connected to GSTTR’s electrical and diagnostic services.
Transmission Replacement
- Exchange unit installation
- Remanufactured transmission swaps
- Complete replacement after catastrophic failure.
Heavy duty towing services
Semi-Truck Towing
- Towing for disabled Class 8 tractors and highway trucks.
Trailer Towing
- Transport of dry vans, reefers, flatbeds, and other commercial trailers.
Heavy-Duty Recovery
- Recovery of stuck, disabled, or damaged commercial vehicles
Tractor recovery services
- Recovery and transport of truck tractors involved in breakdowns or incidents.
Rollover recovery.
- Uprighting and recovering overturned trucks and trailers
Winch-out services.
- Pulling trucks and trailers from mud, ditches, soft shoulders, and off-road situations.
Load Shift Recovery
- Stabilizing and recovering trailers with shifted or uneven cargo loads.
Air Cushion Recovery
- Specialized recovery of overturned or heavily damaged equipment using air cushions.
Bus and Commercial Vehicle Towing.
- Heavy-duty towing for buses, delivery trucks, and vocational vehicles.
Emergency Roadside Assistance
- Jump starts, fuel delivery, lockouts, and roadside support for commercial fleets.
Engine type repair services
Detroit Diesel
- Detroit DD15 DD13
- Detroit Series 60 (S60)
- Detroit DD16
- Detroit DD8
- Detroit DD5
Cummins
- Cummins X15
- Cummins ISX15
- Cummins ISX12
- Cummins ISX
- Cummins ISM
- Cummins ISL
- Cummins ISB
Caterpillar(CAT)
- CAT C15
- CAT C12
- CAT C16
- CAT 3406E
International/Navistar
- International DT466
- International DT530
- International MaxxForce 13
Additional Engines Also Supported
- International MaxxForce 7 International MaxxForce 10
- CAT C7
- CAT C9
- CAT C10
- Isuzu Diesel Engines
Parts
Accesories
- Truck accessories
- Maintenance chemicals
- Lubricants and fluids
- Performance additives
Engine & Exhaust Parts
- Engine components
- Exhaust system parts
- DPF-related componentsTurbocharger components
Transmission & Drivetrain Parts
- Transmission parts
- Clutches
- Driveline components
- Differentials and drivetrain parts
Brake & Wheel-End Parts
- Brake shoes and pads
- Brake chambersWheel seals and bearings
- Hubs and wheel-end components
Lighting & Electrical Parts
- LED lights and marker lights
- Wiring components
- Batteries
- Electrical connectors and sensors
Steering and axle parts
- Steering components
- Axle parts
- Suspension components
- Kingpins and related hardware
Cab and hood parts
- MirrorsHood components
- Cab hardware
- Body trim and replacement parts
Trailer parts
- Lift gate parts
- Trailer suspension parts
- ABS components
- Air system components
- Landing gear parts
- Door hardware and hinges
Tire products
- New commercial truck tires
- Used commercial truck tires
- Tire repair materials
- Wheel balancing products
Warranty Product Lines Supported
- Freightliner parts and warranty-related components
- Detroit parts
- Cummins parts
- Allison transmission parts
