Looks like most TC's come with short output shaft and its own bearings. How hard is it to replace their shaft with a long one with pillow block bearing so I have a shaft to mount brakes and easier options on sprocket alignments? I know I will loose the ability to do more gearing options like this as opposed to a separate jack shaft. One idea I have is to stack dual sprockets on the rear wheel and duel sprockets on the jack shaft with different ratios. With a quick chain swap I could have a cruiser or a stump puller. Similar what the earlier Honda Trail 90's and some of the Suzuki 185's had eons ago.