BackRack 2007+ Chevy/GMC Silverado Sierra HD Only Low Profile 21in Drill Hardware Kit 1999-pontiac-firebird-base-esi6398444 Only fits trucks equipped with

Only fits trucks equipped with B and W hitch part number 1105 and 1199R in 49" position with minor modifications to both B and W and Air Lift upper bracket

MB3-XTG6 kit features an Xtreme pressure plate for the most demanding driver

ME2-HDSD kit features ACT's most popular Heavy Duty pressure plate

ACT spring-centered assemblies use bushings and cone springs similar to factory clutch discs

BackRack 2007+ Chevy/GMC Silverado Sierra HD Only Low Profile 21in Drill Hardware Kit 1999-pontiac-firebird-base-esi6398444 Only fits trucks equipped withOur new LOW PROFILE DRILL Hardware Kit is available for select late model fullsize trucks. These require you to drill two holes through the top of the bed rail for installation. If you must have the Toolbox sitting at bed rail height this is the option. Four carriage head bolts secure the assembly allowing you to place the Toolbox at a low profile using existing clamps that came with the Toolbox. Drill if you must. Not compatible with TONNEAU COVER