Jeep Wrangler JK NP241 Transfer Case End Yoke 1310 Series

This is the TEN Factory MG13443 drive shaft end yoke for the NP241 transfer case used in 2007-2018 Jeep Wrangler JK and JKU. TEN Factory is a division of Motive Gear. The yoke fits either the front or rear output of the transfer case, has a 32-spline bore, and takes a 1310 series U-joint. It is machined from alloy steel and replaces JE Reel 2-4-5341-10R, JE Reel 2-4-JK03 and Neapco N2-4-JK03.

Why it gets replaced: the output seal rides on the yoke neck, and once that surface is grooved or pitted the transfer case keeps leaking fluid no matter how many seals go in. A yoke with worn splines gives a clunk when you shift between drive and reverse or engage 4WD, and a yoke with damaged ears or a bent strap area causes driveline vibration. Lifted JKs with steeper driveshaft angles are hard on these parts.

On the bench: mark the driveshaft and yoke so the shaft goes back in phase, unbolt the U-joint straps, and support the shaft out of the way. Hold the yoke, remove the output nut, and pull the yoke straight off with a puller. Put in a new output seal while it is apart, slide the new yoke onto the splines, and torque a new nut to the factory spec. Check transfer case fluid level before driving.