Collection: Auto - Gear

Optimize your vehicle’s torque and acceleration with our selection of Auto Gear components. At DIY Customs, we provide high-strength ring and pinion sets, durable transmission speedometer gears, specialized differential spider gears, and heavy-duty gear install kits designed for a perfect fit. Whether you are re-gearing an off-road truck for larger tires, restoring the original drivetrain on a vintage classic, or upgrading to a performance ratio for the track, our professional-grade hardware offers the mechanical precision you need at unbeatable prices. From specialized axle shims and crush sleeves to gear marking compounds and magnetic drain plugs, we carry the essential gear to keep your driveline spinning. Don't see the specific gear ratio (3.73, 4.10, 4.56, etc.), tooth count, or specialized ring gear for your axle housing? Hit the live chat or call 412-882-8346—we can special order and drop-ship exactly what you are looking for directly to your doorstep!