2014 Manual Gasoline Limited quantity Dura Grip piece for Jeep Wrangler JK Improves grip and stability significantly • Reduces slipping in sand and mud • Better torque distribution between wheels • Suitable for off-road and harsh driving • Provides stronger performance and higher control Yukon Gear & Axle Dura Grip Limited Slip Differential Positraction, 30 Spline, 3.92 & Up Ratios, Compatible with Dana 44 Axles, YDGD44-4-30-1