My tractors wheel width is a little better than 5 1/2' and so I use a 6' brush hog but was wondering if it's that important with a scrape blade? I have been offered a used 5' blade for $250 but haven't checked it out yet so I don't know if it's a light weight or heavy duty but I think it is somewhat adjustable. As for the driveway, it's about a 600' single lane gravel (crush run) drive. A local dealer's price sheet gives a 6' slide tilt for $289 but I haven't had a chance to look at them yet either but before doing so wanted opinions from ya'll on how to best determine the width to get.