I'm pretty sure they offered a 1.5" track in that frame, should be able to go up to a 2" before you have to modify the chaincase, if you want taller (2.5-3") you can get chaincase extension kits that lower your driveshaft in the chassis, that gives you extra clearance for a taller track. but unless it's a max4 I wouldn't recommend it, not enough power to push a track like that in the little 600's
they may be called snowmobiles, but hiding behind that is a cheap excuse to not grass drag.
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