This is an aftermarket pinion yoke for a 14 bolt with the 10.5" or 11.5" ring gear in a GM truck. This is the early style yoke without the sleeve on the seal surface. Can be used on all year trucks from 1973-current as long as you use the early pinion seal (2286), or you can use the pinion sleeve 26060977 and the late seal (26064030). This is for the 1350 series u-joint. Shipping is FAST and FREE in the continental U.S.