Differential Gear Pin Set 4x18mm $5.95 Quantity discounts available QuantityPrice Quantity: -+ SKU: HPI96501 Out of Stock ABOUT THIS PRODUCT:Differential Gear Pin Set 4x18mmAboutAboutSet of ten (10) differential gear pins for the HPI Baja 5b. 4mm x 18mm size. HPI part # 96501.