The TeraFlex Dana 60: SlimLock Hub Kit is built to handle extreme conditions and abuse. The dial–s polished 304 stainless steel construction resists corrosion for trouble-free use and smooth operation while the 4140 quench and tempered chromoly hub and shaft cogs feature hardened teeth to maintain precise engagement under torque load. A bronze bushing sleeve reduces wear between the hub and driver for long-term durability. Designed for Dana 60 axles with manual locking hubs and 35-spline axle shafts.