They are the same size fenders for 1/2, 3/4 tons just like the 33-36 rear fenders they just modify by cutting out the inside 1/2 in areas for clearance for the panels and punch new holes in the upper surface. If you have a pickup fender you can make a panel fender from it. The 1.5 ton fenders for all panels , cab & chassis, etc. are bigger and have the same type of cutouts and mounting between single unit and cab & chassis you can make the single units from the cab and chassis fenders.
