Click to expand Tap to zoom S&S, Nut. Pinion Shaft Gear for 77-90 XL by S&S Save £-40.68 £40.68 | / SKU MCS531314 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart DescriptionS&S, nut. Pinion shaft gearDetailsRepl. 7913. Note: Nut has left hand thread.77-90 XL