4WD Front Axle Disconnect Actuator Assy for ASCENDER SAAB 9-7X,Trailblazer,Envoy,Rainer,Bravada 1247

The 4WD axle actuator housing, also called axle disconnect housing, is part of differential that houses the gears and shift fork required to lock both front axles together. It works together with transfer case to send torque to all four wheels. Most of the time, the vehicle is in RWD.When 4WD is engaged, transfer case engages the front driveshaft. It's still necessary, though, to connect two front constant velocity (CV) axle shafts. This is done via a front differential and the axle actuator.Due to its location underneath the vehicle, the axle actuator housing can be exposed to dirt, road salt, and other pieces of road debris. These can damage the actuator housing, which will less effective at protecting the moving parts inside.Then, dirt can get inside of the actuator to cause bearing wear or lubricant leakage. Wear can also simply occur over time from use. If you try to shift the vehicle into 4WD at speed, the high forces involved might crack the actuator housing.Our Four-Wheel Drive (4WD) Actuator Housing is quality-engineered to restore the four-wheel drive to proper operation. It includes all the hardware necessary for a complete repair. It helps shift four or all wheel drives to rear wheel drive and helps shift four or all wheel drives to rear wheel drive. Direct replacement for a proper fit every time.Type: front axle disconnect actuatorFitment Type:Direct ReplacementPart Number:12471623, 12471625, 1247162712471628, 12471629, 1247163312471636, 12479081, 1247919712479302, 15801507, 2603609226053326, 600-115, 600115Fitment:for 2004-2007 for 2002-2009 Chevro-let Trailblazerfor 2002-2006 Chevro-let Trailblazer EXTfor 2002-2009 Envoyfor 2002-2006 Envoy XLfor 2004-2005 Envoy XUVfor 2003-2008 Ascenderfor 2002-2004 BravadaMaterial:ABS+metalcolour:Black + SilverPackage Contents:1 set x front axle disconnect actuatorOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +\/- 1-3cm.