PowerTrax 3991014RDT Cross Pin Dana-30 9310 Material

Precision Differential Pinion Shaft maintains correct power distribution to all Unleash your vehicle’s full potential with our Performance Differential Pinion Shaft—engineered for racers, builders, and off-road enthusiasts who push the limits. Built to handle extreme torque loads and aggressive driving conditions, this shaft ensures your ring-and-pinion stay perfectly aligned under maximum stress.

Constructed from premium alloy steel and heat-treated for superior hardness, it delivers the toughness needed for high-horsepower applications and prolonged abuse. The precision-ground surfaces reduce internal friction and ensure smooth gear mesh, translating to quicker power delivery and minimized drivetrain losses.

When every foot-pound counts, you need a shaft that won’t flinch. This design resists torsional stress and pitting under heavy load, making it ideal for drag strips, lifted trucks, rock crawlers, and turbocharged builds. It's engineered to meet or exceed OE performance standards for strength, fitment, and reliability.

Thanks to its easy drop-in fit with no modification required, you’ll spend less time wrenching and more time chasing performance. Whether you're dialing in a custom setup or replacing a worn unit in a built differential, this pinion shaft delivers the backbone your drivetrain demands.

Push harder. Drive stronger. Trust your build. Designed for compatibility with OEM-specified gear oil viscosities, ensuring correct lubrication under all operating conditions. Heat-treated alloy steel construction withstands peak torque demands of loaded commercial trucks, preventing gear tooth fatigue and breakage. OEM-spec gear ratios preserve intended vehicle speed, performance, and fuel economy characteristics. Precision fits to carrier housing bores eliminate shimming uncertainty and simplify installation for experienced drivetrain technicians. Precision-machined gears and tight backlash tolerances ensure smooth power transfer and efficient torque distribution between axles.