This Inside Track Conversion Kit allows customers to easily and quickly convert their regular or Fat Boy axle boxes, to inside track boxes.  Parts: 2 - FFB36 Box Wheel New style2 - FFB37 Flat Box Wheel New Style2 - FFB38 Bushings2- FFB39 Axel Wheel Screw2 - FA268 #10 Flat Washer2- FA247 6-32 x 5/8" Hex Bolt1 - ITFB38-L IT Wheel Bracket Left1 - ITFB38-R IT Wheel Bracket Right Video: Columbia Inside Track Conversion Kit