Sapp Bros. is your local axle specialist for United Axle in Iowa, Nebraska, Missouri, Kansas, Colorado, Wyoming, Utah, Illinois, and Pennsylvania!

We are proud to partner with United Axle as they revolutionize the axle industry! Our service centers in Salt Lake City, Cheyenne, Denver, Omaha, Council Bluffs, Junction City, Harrisonville, Nebraska City, Clearfield, and Peru run fully equipped United Axle Service Vehicles with the tooling needed to replace spindle roadside or at our service center to get you back on the road quick.


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Revolutionizing The Axle Industry!

United Axle spindles are threaded into the axle tube allowing spindles to be easily installed and removed – making them replaceable and serviceable! United Axle is leading the axle industry in this cutting-edge technology. Their innovative proprietary process for spindle replacement is not only affordable, but also quickly completed on-site in under three hours.




Safe and Cost Efficient!

United Axle spindles were developed with safety as the number one concern. Their innovative installation process will leave you with a better, stronger, serviceable spindle. United Axle gives you not only a safe alternative, but a more cost efficient option. Spindle replacement is approximately 1/6th of the cost of replacing the entire axle housing AND the process only takes a few hours.




See It In Action

Patented Proprietary Process

United Axle have developed a revolutionary process for spindle replacement. This new process is making a huge impact in the trucking industry offering a new, stronger spindle that is now serviceable. Replacements are completed in UNDER THREE HOURS and to reinstall one of our UA spindles takes less than two hours.

01. Cut
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The majority of roadside breakdowns are tire related. Properly identifying bad spindles can help prevent you from becoming part of this statistic. Red flags to watch out for include: metal shavings in hub oil, wheel seal leaking, or hub hot to the touch after driving distances. Running a truck on bad bearings increases the chance of damaging the spindle. Once damage has occurred options are limited. Either entire axle will need replaced or spindle replacement. United Axle has revolutionized the replacement spindles and process.

The first step in the replacement process is the remove the old damaged spindle. We can then smooth and clean up the axle tube in preparation for the new threaded spindle.
02. Thread
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After axle tube is prepared, the bushing is machined to custom fit the axle tube. Once the precise size has been achieved, the axle tube can now be threaded to accept the new spindle replacement. It is then threaded into the axle tube and torqued down to specifications.
03. Install
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Once the spindle is threaded in and torqued down, our technician can make the final weld. This will seal the axle housing for drives and air suppression systems.

Once our spindle technician has completed the spindle replacement, the vehicle is ready for wheel assembly.
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