If you’re in the market for a reliable manual transmission, the Zumbrota Drivetrain Manual Transmissions are worth a serious look. I’ve been through my fair share of gearboxes, and it’s refreshing to find a product that doesn’t cut corners. These guys go through a rigorous three-step inspection process that really sets them apart. First up, they do a pre-inspection to check for any case cracks or excessive wear—trust me, you don’t want to deal with those headaches later on. They also keep an eye out for those pesky OEM-specific issues that can pop up.

Once that’s cleared, they measure every component to ensure it meets OEM specifications. It’s not just about slapping parts together; they’re all about precision. Finally, after the rebuild, there’s a thorough post-build inspection. They check everything from gear wear to mainshaft straightness and synchronizer performance. It’s like a full check-up for your transmission.

One of the best parts? Every unit is dyno-tested. They put these transmissions through real-life scenarios to make sure they’ll hold up when you need them most. Plus, they replace all the seals, so you won’t be worrying about leaks down the road. And let’s not forget about the exclusive hydro-blast rinse and sandblasting procedure. It’s not just about cleaning; it’s about making sure everything is spotless inside and out, which is crucial for performance.

With a two-year unlimited mileage warranty backing these transmissions, you can hit the road with confidence. They fit seamlessly into the Chevrolet C3500HD and GMC C3500HD from '94 to '95, and if you’re driving a C/K 3500 from those years, you’re in luck—this NV4500 5-speed manual transmission is designed just for you.

So, if you’re tired of dealing with unreliable gearboxes, give Zumbrota a shot. They’ve set the bar high for what a remanufactured manual transmission should be.

• Three quality inspections throughout the remanufacturing process.
• Pre-inspection to catch case cracks and excessive wear.
• Component measurements to ensure OEM specs are met.
• Final post-build inspection for strict quality standards.
• 100% inspection of internal parts, including gear wear and synchronizer testing.
• Dyno-tested through real-life scenarios for optimal performance.

• Chevrolet C3500HD 1994-1995
• GMC C3500HD 1994-1995

Products Fitment:
Chevrolet C/K 3500 1994-1995
GMC C/K 3500 1994-1995 RMT4500C-12 Zumbrota NV4500 5-Speed Manual Transmission GM C3500HD 2WD 1994-1995.