Click to expand Tap to zoom Jim's, Pinion Shaft Bushing. Std Size for 58-78 Big Twin by Jim's Save £-13.74 £124.63 | / SKU MCS518132 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart DescriptionJIMS, pinion shaft bushing. Std sizeDetailsWith locking detents. Steel. In crankcase. Standard O.D.size is 2.1270".58-78 B.T.