Push Pin Kit. Quick disconnect pins come complete with springs and retaining clips (If required). Size: 1-3/8" Shaft. Quick disconnect yokes 1-3/8" - 6 Spline (size 1-8), 1-3/8" - 21 Spline (Size 1-6), 1-3/8" - 6 x 1-3/8" - 21 Spline (Size S4-S7). Fits Bondioli & Pavesi models.