Yukon Mini Spools are a low-cost traction option for vehicles looking for full-time lockup. The mini spool installs into a standard open carrier in place of the spider gears and delivers 100% power to both tires at all times. These units are not recommended for street-driven vehicles. Full spools are recommended for vehicles with large tires or high horsepower.Additional Attributes:GTIN:00883584322269Material:SteelSpline Quantity:31Color:BlackHeat Treated:YesGrade Type:PerformanceCalifornia Proposition 65:NoExtended Information:Emissions :CARB EligibleLife Cycle Status:Available To OrderPackaging:Quantity of Each:1.0Package UOM:EADimension:6.0000 x 6.0000 x 6.0000 inchesWeight:5.4000 PG