If you’re in the market for a solid manual transmission, you’ve come to the right place. Zumbrota Drivetrain has been in the game for over 30 years, and we’re all about keeping that manual transmission dream alive. Yeah, I know, manuals are becoming harder to find, especially since most manufacturers are shifting gears (pun intended) towards automatics. But we’re still here, focusing on what we do best: delivering reliable remanufactured five-speed and six-speed transmissions that won’t let you down.

What makes our transmissions stand out? First off, we’ve got a meticulous remanufacturing process. We don’t just slap some parts together and call it a day. Each unit goes through three quality inspections. It starts with a pre-inspection where we check for cracks and excessive wear—basically, we want to make sure we’re starting with a solid foundation. Then, during the reman process, we double-check that all components meet OEM specs. Finally, there’s a post-build inspection to ensure everything is up to our strict standards. Trust me, we’re not cutting corners here.

We also take pride in how we clean our parts. Our state-of-the-art hydro blasting process brings the cases back to an OEM finish. You’ve got to see it to believe it! And because we care about the insides just as much, we inspect every internal part—gear wear, mainshaft straightness, synchronizer testing—you name it. Plus, we replace all seals, bearings, and other wear components, so you know you’re getting something that’s built to last.

Oh, and did I mention that all our transmissions are dyno tested? We run them through real-life scenarios to make sure they can handle whatever you throw at them. They’re shipped in high-density plastic totes to prevent any damage during transit. And we back it all up with a solid 2-Year/Unlimited Mileage Warranty for manual transmissions used in vehicles up to 3/4 tons. That’s peace of mind right there.

Details:

• Manual Transmission Assembly
• Model: Getrag HM290
• Drive Type: RWD
• Engine Liter: 4.3
• Engine Cylinders: 6
• Transmission Speeds: 5
• Integral Bell Housing
• 3 Rail Internal Shift Mechanism
• External Slave Cylinder
• Aluminum Shifter Pod
• Hollander Numbers: 400-02397A

Fits Models:

• 1990-1992 Chevrolet S10 Blazer Getrag-5-Speed
• 1990-1992 GMC Jimmy Getrag-5-Speed
• 1990-1993 Chevrolet S10 Getrag-5-Speed
• 1990-1993 GMC Sonoma Getrag-5-Speed

So, if you’ve got a 1990-1993 Chevrolet S10 or GMC Sonoma, this Getrag HM290 5-speed manual transmission is the upgrade you’ve been looking for. It’s built tough and ready to give you that driving experience you crave—no fluff, just solid performance.