This kit contains 2 autolock hub Viton o-rings and 2 stainless steel retaining rings- a full set for each autolock hub.
MADE IN THE USA
If you are concerned that your autolock hub o-rings are worn or damaged, you could lose vacuum past this o-ring. A vacuum leak at the hub could keep the Ford autolock hubs from engaging or disengaging your 4 wheel drive.
similar OEM: 4C3Z-1K106-AA (2 O-rings and only 1 clip)