A Hummer steering rack is a tough component. Why? Because the Hummer steering rack has to be strong enough to turn all two, three, or four-plus tons of truck that you're piloting, and it has to be able to react in milliseconds. That would be easier if your Hummer steering rack were just a couple of gears that intersected, but it's not that simple. To keep you from developing pro-wrestler arms, your Hummer steering rack is power assisted. That means there's a hydraulic pump operated by your engine that pushes power steering fluid down to the Hummer steering rack to give you a boost. Thousands of psi of fluid pressure can be present at the Hummer steering rack connections, so your Hummer steering rack has to have some serious seals and tight tolerances. But what happens to seals and tolerances in your Hummer steering rack as it wears? That's right-they grow and leaks begin to show up. When your Hummer steering rack leaks, it can't hold the fluid pressure needed to help you steer, and you end up with jerky steering or worse: no power assist. The internal parts of your Hummer steering rack are quite complex, so if you're having a Hummer steering rack problem don't try to disassemble the unit. Instead, order a new or remanufactured Hummer steering rack from us. We can supply new or professionally rebuit Hummer steering rack units that will perform as well as or better than your original Hummer steering rack. Plus installation is much simpler than disassembling and reassembling your old Hummer steering rack! So order your replacement Hummer steering rack from us today and get your steering back in order-after all, control of your big SUV is at stake.