The Yukon Gear & Axle pinion nut is made for GM 10.5" 14-bolt truck axles, specified with 15/16" x 16 thread and a 1.5" socket, and serves as a direct replacement for truck pinion assemblies. It’s intended for use during heavy truck differential service and reassembly where the 10.5" 14-bolt configuration is present. Yukon’s parts range supports comprehensive axle and differential repairs.
Yukon Gear 10.5in GM 14 Bolt Truck Pinion Nut