The 3102-409X Flange Yoke, designed for the 1310 Series, is a specialized conversion yoke for the 2018+ Jeep Wrangler JL rear differential. It features an 8-bolt pattern with 0.325″ bolt hole diameters. The yoke has a 3.543″ bolt circle diameter and a 4.094″ outside swing/piloting diameter. The approximate length from the flat of the flange to the center of the U-joint cap is 2.750″. This yoke allows for seamless integration of an aftermarket driveshaft with the stock Jeep differential.