Certified Repairs and Maintenance for Allison Transmissions
At Superior Equipment Repair, we specialize in servicing Allison automatic transmissions used in heavy-duty trucks, buses, and vocational vehicles.
Whether your transmission needs diagnostics, fluid service, or a complete rebuild, our certified technicians have the tools and expertise to restore performance and reliability.
Common Allison Transmission Issues We Repair
Allison transmissions are known for their durability and smooth shifting, but over time, components wear and issues can arise. We commonly repair:
✓ Delayed or rough shifting
Often caused by valve body issues or low fluid pressure.
✓ Overheating
Resulting from clogged coolers, old fluid, or heavy loads.
✓ Slipping or loss of drive
Slipping or loss of drive Can signal internal wear or electrical faults.
✓ Air Brake System Issues
Air leaks, weak pressure, or compressor faults that affect safety and performance.
✓ Torque converter problems
Including shuddering or poor acceleration.
✓ Electronic control failures
Such as faulty TCMs (Transmission Control Modules) or sensor errors.
Reliable Service for Allison Transmissions
We provide full support for medium- and heavy-duty Allison transmissions, including:
✓ Diagnostics and computer scanning
✓ Fluid and filter changes
✓ Valve body service
✓ Torque converter replacements
✓ Full rebuilds or overhauls
✓ Preventive maintenance programs
All repairs follow Allison service standards and use OEM-grade or approved replacement parts to ensure reliability and performance.
Why Rely on Us for Truck Service?
Assistance
Roadside assistance for emergency repairs. We ensure fast, reliable support whenever you need it.
Custom Fleet Management Solutions
Tailored coordination and maintenance solutions to help manage your fleet and improve efficiency.
Certified Technicians
Skilled, certified technicians delivering top-quality repairs with expertise and precision for your peace of mind.
Why Rely on Us for Truck Service?
Assistance
Roadside assistance for emergency repairs. We ensure fast, reliable support whenever you need it.
Custom Fleet Management Solutions
Tailored coordination and maintenance solutions to help manage your fleet and improve efficiency.
Certified Technicians
Skilled, certified technicians delivering top-quality repairs with expertise and precision for your peace of mind.
OUR SERVICE NETWORK
Field Service Supported by Three Repair Facilities
Superior Equipment Repair operates repair facilities in McClellan, Rancho Cordova, and Santa Rosa, supported by regional mobile service for commercial fleets, trucks, and heavy equipment.
Use the interactive map below to view our repair facilities and current service coverage. If your location falls outside the highlighted area, contact our team to confirm service availability.
Brands We Service and Repair
Need Truck Repair Services?
Full-service repairs, diagnostics to overhauls—see what we offer for your fleet.
Keep Your Fleet Moving With Superior
From preventive maintenance and inspections to mobile service and complex repairs, we provides the people, facilities and field-service capability to support your operation at scale.