Comprehensive Transmission & Driveline Solutions
Expert Care for Every Vehicle
At Harmon Performance Transmission & Diesel Repair, we specialize in the most complex component of your vehicle: the drivetrain. Our ASE-Certified technicians combine decades of hands-on experience with advanced diagnostic tools to ensure your vehicle—whether it’s a daily commuter, a heavy-duty work truck, or a dedicated track car—operates with peak precision and reliability. We don’t just fix problems; we provide lasting performance solutions tailored to your specific driving needs.
Specialized Performance & Repairs
Automatic Transmissions
Reliable repair, maintenance, and complete overhauls for all domestic and foreign makes.
Diesel Services & Repair
Comprehensive diesel drivetrain care, including performance upgrades for work and play.
4WD, Transfer Case, & Differential Repairs
We provide expert diagnostics and repair for 4WD systems, ensuring your transfer case and differentials are prepared for any terrain or towing demand.
Clutch Services
From standard replacements to high-performance upgrades, we ensure your clutch provides the engagement and durability you need for a smooth driving experience.
Manual Transmissions
Our technicians are highly skilled in manual transmission repair, addressing everything from synchronizer issues to complete gearbox rebuilds.
Specialty Transmissions
We have the tools and expertise to service unique and custom transmission setups that general repair shops often turn away.