A failing transmission can sideline your truck for days. Our experienced technicians diagnose and repair all types of heavy-duty truck transmissions, from minor adjustments to complete rebuilds.
Why Transmission Health Matters
The transmission connects engine power to the wheels. If it is not working properly, your truck will not perform as it should, no matter how strong the engine is. Delayed shifts, rough gear changes, and loss of smooth power hurt safety and fuel economy.
Common Transmission Problems
Problems often start small and grow. Gear slipping, rough or delayed shifting, fluid leaks, strange noises, or a burning smell mean the system needs attention before damage spreads.
How We Diagnose and Repair Transmissions
We inspect for visible damage, leaks, and wear, then use diagnostic tools tied into your truck’s systems to find exact faults—not guesses. We explain what we find in plain language before any major work.
Repairs range from fluid service and seals to component replacement or full rebuilds. We focus on lasting fixes, not quick patches.
Maintenance and Warning Signs
Clean fluid at the right level reduces heat and wear. Pay attention to shift feel, leaks under the truck, noises, or slipping—early checks usually cost less than a roadside failure.
Serving Drivers Across South Carolina
KM Truck & Trailer supports individual drivers and fleets statewide. We know your truck is your income, so we work to get repairs done efficiently and keep downtime low.
We specialize in Allison automatic transmissions, Eaton Fuller manual transmissions, and all other major heavy-duty gearbox brands. Our diagnostics pinpoint the exact issue to avoid unnecessary repairs and cost.
What's Included
Why Choose KM Truck & Trailer?
Trusted & Professional
Experienced technicians delivering reliable repairs you can count on.
Flexible Payment
Convenient payment choices designed to fit your budget.
Satisfaction Guarantee
Quality service backed by our commitment to customer satisfaction.
Friendly Support
A helpful team ready to assist you every step of the way.
Frequently Asked Questions
Trusted by Truck Drivers Across SC
Based on 100+ verified Google reviews
"They are so amazing people, well spoken, on time and quick like ambulance. Fair price. They took 37 minutes to fix my brake leaks on my semi truck."
"I've been in trucking business for 9 years. I've never been to any shop like this. They're honest, fast, the price is very reasonable. Highly recommend!"
"This is the best diesel repair shop in South Carolina on I-77 and I-26 area. They are very truthful and very honest people. Highly recommend."