I just one have no idea what brand and have never used one. I have two questions. First is how close to the edge front, back and side is the blade supposed to track? i got new blades and they are about an inch longer( the old ones look like machetes). Im guessing they were never changed. The sides are pretty beat up and turned under a little, the new blades hit the sides. should not hit after i fix the sides just close. Secondly when i was trying to spin the blade i had the pto locked in gear while i was looking at the clearance, and o can stiill spin the blade, stump jumper,but the nut and shaft also spin not the pto shaft.Normal?? or do i get to dig? thanks guys... jon