This was touched on a little in the "pulling tractor" forum, but figure I would ask here also. May have a chance to pick up a old Bolens 15something.[I though he said 1525, but could be wrong. Hydro 14hp Kohler] I have been looking for a tough tractor to maybe turn in to a puller. Any idea if this would work? Any weekness in the hydro tranny on these units? It does have the big knob on the axle to lock it, you think that would hold up to pulling abuse? Thanks for any help!!