The Yukon Mighty 12T axle seal for 1963–1964 coarse-spline applications is a precision replacement intended specifically for 63–64 GM 12-bolt truck rear ends. Yukon Mighty Seals use modern design and manufacturing to deliver a tight, durable fit. Install this direct-fit axle seal to restore proper sealing where the original coarse-spline 12T seal has worn or leaked.
Yukon Gear Mighty Seal 12T Axle Seal For 63-64 Coarse Spline