Fit kit adapters 1230 WIDE CROSS BAR FIT KIT Extra-long carriage bolts for use with wide cross bars like Rhino Rack Reconn Bars, ARB Base Rack, and Rivian. Increases max width from 3.3″ to 5.0″. Kit includes: 4x M10 x 200 mm stainless steel carriage bolts and replaces shorter carriage bolts included in standard Slipstream kit. 1235 ROTATING FIT KIT, OPTION A For use with racks with tight spacing (7 inches or less) between cross bars (slats) like the Front Runner Platform to allow the brackets to rotate 90 degrees. Fit kit includes: 4x M8 x 35 mm stainless steel button head screws, 8x M8 stainless steel washers and 4x stainless steel Option A circular washers. This kit replaces the top hardware for the sliding Quick Release brackets. 1240 ROTATING FIT KIT, OPTION B For use with racks with tight spacing (7 inches or less)between cross bars (slats) like the Front Runner Platform to allow the brackets to rotate 90 degrees. Fit kit includes: 4x M8 x 35 mm stainless steel button head screws and 4x stainless steel Option B circular washers. This kit replaces the top hardware for the sliding Quick Release brackets. 1205 OPTION A HARDWARE For use with OPTION A tents. Kit includes 8x 1317 rectangular washers, 8x M8x35mm stainless steel carriage bolts, 4x 1305 rectangular spacers and 4x M8 lock nuts. 1210 OPTION B HARDWARE - email to inquire For use with OPTION B tents. Kit includes 8x 1323 rectangular washers, 8x M8x35mm stainless steel carriage bolts, 4x 1305 rectangular spacers and 4x M8 lock nuts. 1215 OPTION C HARDWARE - email to inquire For use with OPTION C tents. Kit includes 8x modified t-nuts and 4x M8 lock nuts.