If you're on the hunt for a reliable manual transmission that won't let you down, you might want to check out the Zumbrota Drivetrain Manual Transmissions. These bad boys are rebuilt with a level of care that you just don't see everywhere. It all starts with a three-step inspection process that really digs deep. First off, they do a pre-inspection to catch any case cracks or excessive wear. You’d be surprised how many cores have hidden OEM issues that could bite you later on. Then they measure all the component parts to ensure they meet OEM specs—no cutting corners here. Finally, they do a thorough post-build inspection to confirm everything is up to their high standards.

Now, let’s talk about what really matters: quality. They put each unit through the wringer, checking for shaft straightness and gear wear, and testing the synchronizers like it’s a race day. Plus, all seals are replaced, and they put the whole thing on a dyno to ensure it shifts smoothly and quietly. You can trust that they’ve set the bar high for precision and reliability at every critical touchpoint. They even go the extra mile with a hydro-blast rinse and sandblasting for both the internal and external parts, followed by a proprietary cleaning process that’s just top-notch.

And here’s the kicker: all Zumbrota manual transmissions come with a two-year unlimited mileage warranty. That’s right—drive it as much as you want, and you’re covered. Features:

• Three quality inspections throughout the remanufacturing process
• Pre-inspection to catch cracks and excessive wear before they become a problem
• Second inspection to ensure all parts meet OEM specifications
• Final post-build inspection to guarantee everything is up to snuff
• 100% inspection of internal parts, including gear wear, mainshaft straightness, and synchronizer testing
• Dyno-tested through various real-world scenarios to ensure performance

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

Specifically, this fits the Ford F-250 and F-350 models from 1987 to 1992, powered by the 6.9L or 7.3L engines. If you're looking for a solid 5-speed manual transmission without the power take-off, this Zumbrota S5-42 is a great pick. It’s built to last and ready to hit the road.