Now available from Holley are complete kits that have everything needed for the application. If you don't want A/C, or want to use the factory mounted LS A/C, this is the complete drivers side P/S, Alternator kit for you. Included are accessories and pulleys that are manufactured by OE part suppliers many of which are on production cars today. NOTE: This bracket MAY require an installation kit for assembly (Part 21????2, OR 21????3, see instruction sheet below for the correct installation kit for your application).