2007-2017 JEEP JK SPIN FREE KIT, 5x5.5" PATTERN, 7166 U-JOINT

Requires 5 x 5.5" wheels. Requires at least 105 mm or 4.130" Wheel Pilot Diameter. 2007-2011 Dana 30 stock front axles have smaller u/Joints, inner axles with 1350 series (7166x U/joint size) are also required. Replaces vulnerable and expensive factory unit bearings

Yukon Gear & Axle Spin Free Kits increase fuel efficiency and reduce maintenance costs. These kits replace the failure prone and expensive factory unit bearings with tapered bearings and races. The result is not only a design which is easier and more economical to service, but one that offers significant increases in fuel efficiency because there are fewer rotating parts in the drivetrain. Less parasitic drag equals better MPG. Spin Free Kits also include low-profile Yukon Hardcore Premium Locking Hubs, for quick changes between two-wheel and four-wheel drive.