Pack of 2 Rear L/R Air Suspension Spring Bellows Bag Compatible for ford Expedition 4WD[description]Description Air bag shock absorber is a kind of inflatable shock absorber, is the use of air pressure resistance to shock products, airbag is a component of airbag shock absorber, when the damage of the airbag shock absorber can only replace the parts of the airbag but not the whole shock absorber Application 1997 2002 compatible for Ford Expedition 4WD 1998 2002 Compatible for Lincoln Navigator 4WD Fits 4WD (Four Wheel Drive) Models only