Yukon yoke for 8.5 or 8.6 GM (mech 3R) with a U/joint size and triple lip design. 2.556 snap ring span, 1.125 cap diameter. Inside snap ring. This yoke uses inside snap rings. All Yukon yokes come with a one year warranty against manufacturing defects. Product Features:Fits GM 8.5 and 8.6 30 splineMechanics 3R u-joint size2.556 snap ring span1.125 cap diameterInside snap ring designStrap style