The Yukon Zip Locker is the latest in on-demand traction. Its air-operated design allows you to switch from an open differential to 100% lockup when you need it, giving you the ultimate in driver selectability.Additional Attributes:GTIN:00883584340027California Proposition 65:NoExtended Information:Emissions :CARB EligibleLife Cycle Status:Available To OrderPackaging:Quantity of Each:1.0Package UOM:EADimension:3.0000 x 3.0000 x 1.0000 inchesWeight:0.1800 PG