Rockford Products LLC (RP LLC), is a vertically integrated manufacturer of cold formed components. Rockford Products LLC is a ... lso the largest manufacture of steering and suspension ballstud product (ball studs, stabilizer pins, inner tie-rods, and inner tie rod housings) in North America. RP LLC manufactures over 900 active suspension part numbers to the Automotive OEM and Automotive Aftermarkets RP LLC’s Technical Sales Group together with our Product Engineering staff will support your organization in finding cost effective solutions for your application and design needs. Whether working on new designs, or participating in VA/VE activities, RP LLC will provide you with the most market competitive design alternatives. • RP LLC maintains a number of multi-stationed large cold formers, including a 1500 National Cold Former utilizing 1 ½” diameter wire. • A number of CNC machining centers • Complete in house heat treating facility • Roll threading, Grinding, punch press, etc read more