GM Turbo 400 Transmission Slip Yoke, 4L80E/TH 400 (1350 U-joint) Uses outside snap rings (measurement is 3.622") Center of u-joint to end of slip measurement is 7.940" U-joint cap diameter is 1.188" Seal surface is 1.8860" 31 based on 32 spline count (spline size is 1.378")