This set was created specifically to expand the capability of your OTC7249 ball joint service tool set. It includes all the receiver tubes and removing/installing adapters needed to work on press-fit upper and lower ball joints on most GM, Ford, and Dodge, 2 and 4-wheel-drive pickups, vans, and sport utility vehicles, through 1997. Also includes the No. 7917 live center forcing screw plug. Packaged in a convenient carrying case and includes application chart.