Transmission and Drivetrain Repair in Bethany, MO
Restoring Power and Performance to Your Rig
Guernsey’s Truck Trailer and Tire Service delivers professional transmission and drivetrain repair for heavy-duty and semi trucks. Located in Bethany, MO, our shop handles complex powertrain systems with precision and speed. Whether you’re dealing with a slipping clutch, noisy differential, or shifting problems, our experienced technicians can diagnose and resolve the issue fast — so you don’t lose valuable time or revenue.
Full-Service Powertrain Repairs
From basic clutch adjustments to full transmission rebuilds, we take care of the critical systems that move your truck forward. Our service covers both manual and automatic transmissions, as well as complete drivetrain components.
Transmission Repairs Include:
- Transmission diagnostics and fault code reading
- Fluid leaks and overheating issues
- Gear shifting problems and grinding noises
- Full rebuilds and component replacements
- Automatic and manual systems
We work on all major manufacturers, including Freightliner, Kenworth, Peterbilt, Mack, Volvo, International, and others.
Drivetrain Repairs Include:
We work on all major manufacturers, including Freightliner, Kenworth, Peterbilt, Mack, Volvo, International, and others.
- Differential repair and gear replacement
- Driveshaft and U-joint replacements
- Axle repair and balancing
- Transfer case repairs
- Power loss troubleshooting
We use high-performance parts and proven techniques to ensure long-term reliability under heavy loads and long miles.
Transmission Repairs Include:
- Transmission diagnostics and fault code reading
- Fluid leaks and overheat issues
- Gear shifting problems and grinding noises
- Full rebuilds and component replacements
- Automatic and manual systems
We work on all major manufacturers, including Freightliner, Kenworth, Peterbilt, Mack, Volvo, International, and others.
Drivetrain Repairs Include:
We work on all major manufacturers, including Freightliner, Kenworth, Peterbilt, Mack, Volvo, International, and others.
- Differential repair and gear replacement
- Driveshaft and U-joint replacements
- Axle repair and balancing
- Transfer case repairs
- Power loss troubleshooting
We use high-performance parts and proven techniques to ensure long-term reliability under heavy loads and long miles.
Clutch Repairs and Replacements
A worn or failing clutch can leave you stuck fast. We offer clutch replacements and hydraulic system repairs for a range of heavy-duty truck models. Our team ensures that every replacement is properly aligned and tested for maximum lifespan and performance.
No-Mileage-Limit
Mobile Repairs
Transmission problems don’t always wait until you’re near the shop. That’s why we offer mobile service across a wide 250-mile radius — with no mileage restrictions. If you’re down on the side of the road or at a delivery site, we’ll bring the tools and expertise to you.
24/7 Expert Repairs
Around-the-clock service Monday–Friday for trucks, trailers & heavy-duty equipment — minimizing your downtime, maximizing your uptime.
Why Choose Guernsey’s for Transmission & Drivetrain Work?
20+ years of hands-on repair experience
Advanced diagnostic equipment
Honest evaluations and efficient repair plans
High-quality transmission and drivetrain parts
24-hour availability Monday through Friday
Roadside and mobile service with full coverage
FAQs About Transmission & Drivetrain Repair
Do you service both automatic and manual transmissions?
Yes, we repair and rebuild both transmission types.
How do I know if my drivetrain is failing?
Symptoms like clunking noises, vibration while driving, or difficulty turning may indicate drivetrain issues. We can perform a full inspection.
What if I break down far from the shop?
We offer mobile transmission and drivetrain repair anywhere within a 250-mile radius.
Do you offer full transmission rebuilds?
Yes. If a rebuild is more cost-effective than repair, we’ll walk you through your options and complete the work quickly.
Get Back in Gear — Call for Service
Experiencing drivetrain or transmission problems? Don’t wait. Call Guernsey’s Truck Trailer and Tire Service for fast, expert repair.
Phone: (660) 373-2178
Email: guernseytruck@gmail.com
Location: 25773 West US Route 69, Bethany, MO 64424
We’ll get your powertrain running strong again.
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