I added Pacer Performance 52-175 Flexy Flares 4-1/4" no lip side mount rubber fender extensions to my 725D. I used #8ss metal screw with #8 ss fender washers on 2' spacings. There was a hole through outer rib which I added a 1/8" ss welding rod for extra support. They fit perfectly and will keep mud flying off tires this fall in the wet mowing season.