Upgrading your drivetrain with new gears and locking differentials is a popular modification among off-road enthusiasts and those looking to enhance the performance of their vehicles in challenging conditions. We offer gear packages to optimize the power and torque delivery to the wheels and restore power lost when larger tires are added. We also offer a variety of limited slip or selectable locking differentials to improved traction by mechanically connecting the left and right wheels on an axle. Want it already done? Check out our fully built housings from top brands such as Dynatrac and Dana Spicer.