If you’re looking to breathe new life into your old Ford F-250 or F-350, the Zumbrota Drivetrain Manual Transmission might just be the upgrade you need. These bad boys are rebuilt with a level of care that’s hard to find these days. They go through a rigorous three-step inspection process that ensures you’re getting a reliable piece of machinery.

First up, there’s a pre-inspection where they check for case cracks and any signs of excessive wear. It’s all about catching those pesky OEM issues that can sneak up on you. Next, they measure all the component parts to make sure they meet the original equipment manufacturer specs. This isn’t just a box-ticking exercise; it’s crucial for performance and durability. Finally, after everything is put together, there’s a post-build inspection to ensure it’s up to Zumbrota’s exacting standards.

What really sets these transmissions apart is the thorough testing they undergo. They check for shaft straightness, gear wear, and synchronizer performance—basically, everything that could affect how smoothly your truck shifts. And don’t worry about leaks; all seals are replaced, and each unit is dyno-tested to ensure it runs smoothly, shifts like butter, and operates quietly.

They even take it a step further with a unique hydro-blast rinse and sandblasting procedure for both internal and external parts. This deep cleaning process is proprietary to Zumbrota and really raises the bar for manual transmission remanufacturing. Plus, you get peace of mind with a solid two-year unlimited mileage warranty. That’s a promise you can trust.

• Thorough inspections at three critical stages of the remanufacturing process.
• Pre-inspection for cracks and wear to catch OEM-related issues early.
• Component parts are measured to meet OEM specifications during the second inspection.
• Final inspection ensures everything is built to Zumbrota’s strict standards.
• Every internal part is 100% inspected, including checks for gear wear and shaft straightness.
• Dyno-tested to simulate real-life scenarios and ensure top-notch performance.

• Ford F-250 RWD 1987-1992
• Ford F-350 RWD 1987-1992

So, if you’re driving a Ford F-250 or F-350 from 1987 to 1992, and you want a manual transmission that’s built to last, the Zumbrota S5-42 5-Speed Manual Transmission is the way to go. It’s designed for the Ford F-Series with 6.9L and 7.3L engines, and it’s got no PTO, so you can focus on what matters—getting back on the road with confidence.