Rebuilt CAT Differentials

We are your one-stop rebuilt cat differential shop.

Rebuilt CAT differential in stock.  We can deliver your rebuilt CAT differential by tomorrow. We also ship worldwide. We offer rebuilt CAT differentials and parts. The differential plays a critical role within a Cat® machine’s drivetrain by changing the direction of the power coming from the transmission 90 degrees to allow the axles to be driven. They also allow speed and torque differences between the left and right axles. If you take care of your differential the gears and shafts can last through multiple rebuilds and the overall differential life increases.

We have thousands of rebuilt cat differentials in stock ready to ship today.  We service and install any and all, rebuilt cat differentials. Contact our differential experts today.


Preventative Maintenance

Preventive maintenance includes many techniques—like correctly selecting and changing drive train oil and fluid filters—that help you keep small problems from becoming major repairs.

S-O-S Fluid Analysis

This is the best way for you to monitor what is happening inside your drivetrain systems. It consists of tests that enable you to forecast wear-related problems.


Inspections combine your daily walkaround checks and our periodic technical analyses. They allow you to detect potential problems and impending failures so you can schedule maintenance and repairs.

Repair Management

Repair management helps you select before failure and after-failure repair options and control repair costs. It allows you to plan and schedule repairs, so you can get your machines back to work quickly and reliably.


A good scheduling system ensures that maintenance, inspections, and planned repairs are done on time. It helps you prevent the failures caused by overlooked maintenance.

Check Out Our Online Truck Parts Store



Transfer Case

Transfer Cases


Drive Shafts

truck axles

Truck Axles

truck pto

Truck PTOs

truck differentials


Transmission parts

Transmission Parts

Differential Parts

Differential Parts

Transfer Case Parts

Transfer Case Parts

pto parts

PTO Parts

transmission warranty

Differentials, Transmissions, Transfer Cases & PTOs are new and rebuilt by Pro Gear and covered with a one year, unlimited mileage warranty. *See warranty. All other warranties are that of the manufacturer.