This Yukon replacement standard open carrier case is designed for Dana 30, 3.73 and up only. (Part number YC D706008-X) Includes carrier shims, roll pin, ring gear bolts and a cover gasket. If buying this case for a D30 JK front, you will need to also buy spider gear set YPKD30-S-27. Yukon Gear & Axle manufactures a full line of standard open and positraction limited slip carrier cases for a variety of applications. Each unit is cast and machined to exacting specifications to produce a carrier that provides both high strength and tight tolerances for a long and reliable service life.