See diagram above in pictures Spicer 1310 Series U-Joint (TD-329) NP 231 Transfer Case High Angle Slip Yoke can also be used on GM TH 350 applications that may require a little higher angle This is a NEW 26 based on 27 Spline replacement for Jeep Slip Yoke. This New Process 231 Transfer Case Slip Yoke is 5.750” long. It uses a 1310 Series U-Joint (TD329). This Slip Yoke can also be used on GM TH 350 applications that may require a little higher angle. This Slip Yoke comes with a 90 day Warranty. Warranty valid under normal use only (racing, engine modification, suspension alteration ect.) will void warranty. If you have any questions concerning our products, please message us directly through Amazon and we'll be happy to assist you!