Did you ever find out which size tire your tractor is suppose to have on it? One thing I found out today about the effect of up sizing my tractors tires, I went to hook up my finish mower and was trimming down some high spots and happen to look back to see the mower had not cut close to the level as before, so I climed off the tractor, done a quick assessment and found that the finish mower was now about 2 inches higher than as before, This is at it's lowest level/bottom out of the hitch arms, While scratching my head over this a thought come to me, I realized it must had to do with the larger tires I'm now running, Nothing more I can do short of letting the air out of the tires
or welding another bracket up higher on the mower to move the Cat pins higher, So! if anyone else has bright idea's as myself to go with larger tires beware of the trickle down effects, Your rotary cutters might not cut low enough anymore,