Repairs
Heavy-Duty Diesel Truck Repair Services in Dubuque, IA
Heavy-duty breakdowns don’t wait—and neither do we. Our expert team handles all heavy-duty repairs, including engine issues, driveline failures, and more with speed and precision, so you get back to work without delay.

Complete Heavy-Duty Truck Repair Services
Your truck isn’t just a vehicle—it’s your livelihood. That’s why we offer a full range of heavy-duty repairs, covering every major system. Our technicians use advanced diagnostics and factory-grade parts to ensure long-lasting results on every job.
Here’s what we repair:
Axle Repair: Front, rear, and differential issues diagnosed and fixed fast.
Brake Repair: Air and hydraulic systems, drums, lines, and valves.
Coolant System Repair: Radiators, thermostats, water pumps, and hoses.
Electrical & Diagnostics: Troubleshooting, wiring repairs, sensors, and modules.
Driveline Repair: Driveshafts, U-joints, yokes, and balancing.
DPF & EGR Systems: Cleaning, replacement, and system diagnostics.
Engine Repair, Rebuild, Overhaul & Conversion: In-frame or out-of-frame services for all diesel platforms.
Exhaust System Repair: Mufflers, DEF systems, manifolds, and piping.
HVAC Systems: A/C compressors, blower motors, cabin filters, and evaporators.
Fluid Leaks & Oil Repairs: Gasket replacement, oil pan sealing, and fluid tracing.
Suspension Repair: Shocks, airbags, bushings, and leveling systems.
Tire Repair & Replacement: Casing inspection, patching, and new tire mounting.
Transmission & Clutch Repair: Diagnostics, clutch assemblies, and transmission swaps.
Wheel Alignment: Precision laser alignment for safe, efficient driving.
From minor fixes to major overhauls, we handle it all in-house, backed by decades of experience and a no-nonsense work ethic.
Why Choose Guys Truck and Tractor?
Two Fully Equipped Locations: Our Kieler, WI, and Galena, IL, shops give us the room, tech, and manpower to turn trucks around quickly—22 service bays across both.
Real Diesel Experience: Since 1977, we’ve specialized in Class 8 trucks. That means we’ve seen—and solved—it all.
Warranty You Can Trust: 6-month workmanship coverage plus all manufacturer-backed parts warranties.
You-Focused Service: We don’t just diagnose and repair—we explain, guide, and advise. You stay informed and in control every step of the way.
Call 608-568-3257 now for Heavy-Duty Repairs!
Don't lose time or money to an unresolved breakdown. Call 608-568-3257 for expert heavy-duty repairs in Dubuque, IA. We’ll get you in, get it fixed, and get you back on the road—no hassle, no drama.
FAQs
What Areas Do You Serve for Heavy-Duty Repairs?
Kieler, WI Location: 3405 County Road HHH, Kieler, WI 53812 – Call us at 608-568-3257
We proudly serve: Dubuque, IA; Platteville, WI; Monroe, WI; Freeport, IL; Madison, WI; Waunakee, WI; Middleton, WI; Fitchburg, WI; Hazel Green, WI; Dickeyville, WI; Cuba City, WI; and Benton, WI.
Galena, IL Location: 11521 AJ Harle Dr, Galena, IL – Call us at 815-777-3257
We offer our services in the following areas: Dubuque, IA; Freeport, IL; Clinton, IA; Sterling, IL; Rock Falls, IL; Moline, IL; Rock Island, IL; Platteville, WI; Monroe, WI; East Dubuque, IL; Hazel Green, WI; Stockton, IL; Elizabeth, IL; Apple River, IL; Hanover, IL; and Warren, IL.
What’s the Most Common Heavy-Duty Repair?
Brake issues, coolant system failures, and drivetrain problems are among the most common. These systems face extreme wear from heavy loads and mileage, so they need regular inspection and timely repairs to prevent downtime.
What Should I Do If My Truck Breaks Down?
Call us immediately at 608‑568‑3257. We’ll assess the issue, tow you if needed, and prioritize the repair to minimize your downtime. Don’t wait—acting fast saves time and money.
How Can I Get Heavy-Duty Repairs?
Easy—call 608-568-3257. Whether it's an axle, engine, or alignment issue, our team is ready to deliver fast, accurate repairs you can count on.
Our Heavy-Duty Truck Repair Services
When something breaks, you need it fixed fast and fixed right. Our heavy-duty repairs cover everything from engines, brakes, and axles to driveline, suspension, and alignment work
With decades of diesel expertise, state-of-the-art diagnostics, and a team that keeps you informed with every step of the journey, you’ll get back on the road with confidence. We back all workmanship with a 6-month warranty, so there’s no guesswork; just results.
Whether it’s a quick fix or a full rebuild, we’ve got you covered!
Testimonials
Here's what our customers are saying, feel free to leave us a review!
Edward Toma


