ZYN3339 Features: * Ford F-150 spark plug socket * Extension is part of the socket and easily fits down spark plug tube into the cylinder head * Soft rubber insert holds and protects spark plug during removal and installation * Socket end is 0.562"" Specifications: * Unique and patented design works on 2004 newer Ford F-150 pickup trucks with 5.4L 3-valve Triton V-8 engines Dimensions: * Socket has 0.375"" drive for use with a ratchet or breaker bar * Dimensions: 3.75"" H x 1.20"" W x 9.40"" D