Currie Legacy Master Bearing and Installation Kits for the Dana 30™ and AdvanTEK® M186 front axle assemblies include everything needed to rebuild or install a ring and pinion gear set for your Wrangler TJ, JK, or JL equipped with a Dana 30/M186 front axle. Each kit includes carrier and pinion bearings, pinion seal, shims, ring gear bolts with pre-applied thread locker, pinion nut, gear marking compound, and silicone sealant. Premium Koyo bearings are used to ensure dependable, long-lasting performance.