tongueweighttw applications for car and truck classi lassii c 1-1/4 receiveropening 1 ... 2-1/2 receiveropening 3,500-15,000lbs wiring 350-1,500lbs information lassiii,iv&v c ... price no wt wt 3 rd hitch install wire harness t-connector year numbernote code size ... 4 p3,4 p3,4 p3,4 p3,4 p3,4 sedan&s/w 80-78 58700 1 sedan 81-79 58700 1 w/ ... 79-75 58700 1 s/w 76-75 58700 1 sedan 78-75 58700 1 coupe 77-75 58700 1 s/w 81-77 ... 58700 1 5th wheel ford aerostar aerostar 65650 65650 65650 ... econoline fullsize 91-78 extreme all 90-83 08-98 97-92 91-83 82- ... hitch fmfrontmount wiringcodes a-2-wiresystem b-3-wiresystem c-2or3- ...