The kits assembled by Nitro Gear and Axle only use the highest quality bearings available from Timken and Koyo. Nitro Gear and Axle does not use any cheap Chinese bearings. By using only Timken and Koyo bearings just like all of the OEM vehicle manufacturers you can be assured that your differential will be reliable, durable, and quiet for years to come.
Kit Includes:

Pinion Nut x1
Pinion Seal x1
Carrier Shims
Crush Sleeve x1
Inner Pinion Bearing and Race x1
Outer Pinion Bearing and Race x1
Carrier Bearing and Race x2
Ring Gear Bolt x12
Loctite
Marking Compound and Brush