I recently picked up a Gravely 5665. It was apart (came in several cardboard boxes) as it needed a clutch cone. I've replaced the cone (ouch! $$$) and buttoned it back up. Now I'm wondering about tires. I'd like to use it in the garden for furrowing, hilling, etc.. It looks a little low slung for that so I'm wondering if bigger wheels/tires could be fitted to increase clearance. I don't want to make it too fast though so am curious if anyone else has gone down this road and has experience to share. I'm sure I can find a way to compensate for the height when using the 50 mower deck. Thanks!