I just put my bear tracker top end on my timberwolf bottom. Long story...
Anyways... The fly wheel and stator on the bear tracker is bigger.
Bigger CDI box and rectifier also.
Carb manifold is flimsy.
Bigger carb on bear tracker.
Choke style is different.
Still bolting everything together.
Oh, and front disc brakes on 🐻 tracker.
Square tube framing. Longer overall, due to extended front bars.
Drive shaft and swing arm housing is longer.
Bigger altogether and heavier.