This kit converts the stock GM six-lug bolt pattern to a five-lug design will added the traction of a Yukon Dura Grip positraction limited slip differential, new axles, and new drum brake assemblies.Additional Attributes:GTIN:00883584218371Wheel Studs Included:YesShaft Length:30.75Shaft Material:SteelInboard Spline Quantity:30Axle Shaft Seal Included:YesAxle Bearing Included:YesCalifornia Proposition 65:WARNING: This product can expose you to chemicals including arsenic, which is known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov.Positraction Included:YesExtended Information:Emissions :CARB EligibleLife Cycle Status:Available To OrderPackaging:Quantity of Each:1.0Package UOM:EADimension:42.0000 x 28.0000 x 28.0000 inchesWeight:87.0600 PG