Highly Durable Power Seat Gear Replacement. The GruvenParts Brass Seat Height Adjustment Gear provides a robust solution to the common failure of GM power seat height adjustment plastic gear mechanisms. Designed to replace the fragile stock plastic gears, this set ensures smooth, reliable seat height adjustment operation, extending the functionality and lifespan of your GM vehicle’s power seat.

Construction and Appearance. Manufactured from solid brass, the gear set includes a helical cut main spur gear and a mating worm gear. These parts are precisely engineered to match OEM dimensions for a perfect fit. The brass material offers superior strength and longevity, resistant to stripping or chipping compared to plastic counterparts, and presents a polished gold-toned finish characteristic of brass components.

Installation. Installation requires moderate mechanical skill, involving seat removal and disassembly of the height adjustment mechanism. No drilling is necessary; replacement consists of removing the old plastic gears, prepping the shaft, and securing the brass spur gear with a high-strength epoxy adhesive. Installation includes cutting off the plastic spur gear with a rotary tool (such as a Dremel), cleaning the shaft thoroughly, and bonding the brass gear onto the shaft using a 24-hour cure epoxy like JB Weld 8265S or an equivalent product.

Warranty. This gear set is backed by a lifetime warranty, ensuring long-term value and confidence in its durability.

Application. Specifically designed to fit 2007-2013 Sierra 2500 HD models equipped with power seats. It is compatible with a range of GM vehicles using similar seat track part numbers, including Escalade, Silverado, Avalanche, Tahoe, Suburban, Sierra, Yukon, Denali, and DTS series, though fitment is confirmed primarily for this Sierra model and years.

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