PRW Industries Main Stud Kit 12 Point Nuts 2 Bolt Mains Chromoly Black Oxide GM LT Series EIB1000.188.0110 Hex style pit sockets with 33 174520X Hex style pit sockets with a built in extension prevent extension and socket from separating during wheel changes 03 04 MACH 1 AND 01 BULLITT AND 97 02 f SERIES AND EXCURSION and grass roots circle track and drag race events All PRW and Performance Quotient ® products are manufactured in PRWI production facilities under the scrutiny of our technicians and inspectors to ensure that our products meet or exceed SFI specifications and other industry established quality standards