This set was designed to allow you to remove and install the spark plug and VCT seals without having to use a socket and hammer on the plastic valve covers of your 3.5 Ecoboost and 3.7 engine. The full set includes a cup and driver for each seal type (total of 4 pieces in the kit). The spark plug set is marked SP. The VCT set is marked VCT. The sides of each driver are marked I and R for Install and Remove. The kit also includes the necessary bolt, nut, and 2 washers.

IT IS DESIGNED TO BE USED WITH WRENCHES, NOT AN IMPACT OR ANY SORT OF POWER TOOL!!