Cam Tools ensure correct cam timing when servicing timing belts chains head gaskets or other valve train repairs1997 - 2002 4.6L Windsor V8 Econoline and F-Series Truck1997 - 2002 5.4L V8 Econoline Expedition and F-Series Truck1997 - 2002 6.8L V10 Econoline and 1998 - 2002 5.4L V8 Lincoln Navigator-rSame as Ford number 303-557 T96T-6256-BThe OTC 6477, cam tools ensure correct cam timing when servicing timing belts chains head gaskets or other valve train repairs. Application: 1997 - 2002 4.6L Windsor V8 Econoline F-Series Truck. 1997 - 2002 5.4L V8 Econoline Expedition F-Series Truck. 1997 - 2002 6.8L V10 Econoline. 1998 - 2002 5.4L V8 Lincoln Navigator. Same as Ford No. 303-557 (T96T-6256-B).