If you’re looking to give your Ford F-350 Super Duty a serious upgrade, the Zumbrota Drivetrain Axle Assembly is worth checking out. These aren’t just any remanufactured axles; they’re built with an eye for detail that you won’t find everywhere. Each assembly goes through a rigorous inspection process to ensure it meets high standards for precision and reliability. We’re talking about straightness checks, crack inspections, and surface wear assessments. It’s like giving your truck a new lease on life.

What really stands out is that every internal component gets the royal treatment. The ring and pinions, internal gears, clutches, and carriers are all thoroughly inspected and tested. This isn’t just a quick glance—each part is scrutinized to make sure it’s up to snuff. And while we’re at it, all bearings and seals are replaced, so you can hit the road without worrying about leaks or premature wear.

Now, let’s talk gears. Zumbrota doesn’t just toss in any old parts; they ensure that the gears are checked for optimal tooth contact patterns and rolling torque. They use inch-pound measurements for precise setup, which means you get longevity and performance that you can count on. Plus, they set the gear backlash just right, ensuring smooth lubrication and quiet operation. It’s the little things that make a big difference.

The axle tubes? Yeah, they’re inspected too, making sure they meet OEM standards for straightness. And if you think cleaning is just a quick rinse, think again. Zumbrota employs a unique hydro-blast rinse and sandblasting procedure for both internal and external parts, followed by a proprietary deep cleaning process. When it comes to remanufacturing axle assemblies, they’re setting the bar high.

• All tubes are inspected and straightened to OEM specifications, so you know they’re solid.
• Housings undergo thorough testing for any signs of wear or cracks.
• Every internal part, from ring and pinions to clutches and carriers, gets a 100% inspection.
• All bearings, seals, crush sleeves, pinion nuts, and shims are replaced, ensuring a fresh start.
• State-of-the-art hydro blasting and rinsing process brings housings back to that OEM finish.
• Correct rolling torque is established using inch-pound measurements for precision and durability.

• Axle Type: Full Floating
• Cover Included: Yes
• Fluid Included: No

• Ford F-350 Super Duty 1999-2000

In short, if you have a 1999-2000 Ford F-350 and you’re looking to upgrade to a Dana 80 with a 4.11 ratio, the Zumbrota Reman Complete Axle Assembly (RAA435-1988B) is a solid choice. It’s built to last and ready to take on whatever you throw at it.