Serving the Phoenix metro and surrounding areas
Drivetrain Reliability Starts Here.
Expert drivetrain service. from transmissions to differentials. built for performance, reliability, and the demands of commercial fleets. Trusted by operators who can’t afford downtime.
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hear from our people
Drivetrain Trouble Slowing You Down?
You know the signs: slipping gears, strange noises, power loss. Ignoring them doesn’t save time, it leads to:
Sudden breakdowns and unexpected downtime.
Expensive repairs that hit your budget hard.
Missed deliveries and frustrated customers.
KTS Diesel’s Drivetrain Service catches issues early and keeps your fleet in motion. We handle everything from diagnostics to full transmission and differential repair, quickly, efficiently, and with zero guesswork.
Built for Fleets That Can’t Afford Delays
From heavy loads to long hauls, your drivetrain takes a beating. Our expert techs use advanced tools and proven processes to restore performance, extend component life, and help you stay ahead of costly failures.
Complete Drivetrain Evaluation: Built for Fleet Confidence
Full Drivetrain Inspection
Thorough evaluation of driveshafts, U-joints, axle assemblies, carrier bearings, and differentials.Real-World Road Test
When possible, we take your vehicle on the road to detect engagement issues, vibration, or drivetrain noise.Clear, Prioritized Report
No tech talk, no confusion, just a written plan showing what needs attention now, and what can wait.Transparent Pricing, Zero Upsell Pressure
Straightforward service, no surprises. You stay in control every step of the way.KTS Drivetrain Guarantee
Need a replacement within 30 days for any part we checked? We’ve got the labor covered.
Your Fleet’s Backbone Deserves a Closer Look
Thorough Drivetrain Review.
Live-Load Function Test.
Clear Repair Roadmap.
Peace of Mind Coverage.
Fleet Drivetrain Service: What You Need to Know
Q: What does your drivetrain evaluation include?
A: We conduct a comprehensive inspection of the driveshaft, U-joints, axle assemblies, carrier bearings, and differentials. When conditions permit, we also perform a road test on the vehicle to identify load-related issues such as vibration or delayed engagement.
Q: Do you offer mobile service, or is this in-shop only?
A: Both. We work with fleet managers who need flexibility, whether that means mobile service at your yard or scheduled repairs in our facility. You choose what works best for your operation.
Q: Why is drivetrain evaluation important for fleets?
A: Small drivetrain issues can lead to unexpected downtime, driver complaints, or costly secondary damage. Our evaluations help you get ahead of those risks and plan repairs proactively.
Q: How quickly can I expect a report and estimate?
A: You’ll get a same-day written report with clear priorities and transparent pricing, no tech jargon or upsell pressure. We know your time is valuable.
Q: Do you guarantee the evaluation work?
A: Yes. If any inspected drivetrain part needs replacement within 30 days, we’ll cover the labor to replace it, no added cost. It’s part of our commitment to long-term fleet reliability.
Q: What kind of fleets do you work with?
A: We specialize in B2B fleet service for operations with 3 or more vehicles. Whether you run local delivery trucks, heavy-duty haulers, or specialized vocational equipment, we tailor service around your business.
Q: How does this help reduce fleet costs?
A: By identifying problems before they lead to major failures, we help you control repair spend, avoid rental costs, and reduce unplanned downtime across your fleet.