My first skidoo, 98 mach 1 ® 5500 mi.paid $750.00. A friend hooked me up with his boss sled.He belives i paid 30% of the value.I don't. It needs a track, rings, and i belive a crank. every thing i have seen in here reinforces my belief in crank bearings.I put a drop indicator on the crank, it moves all over the place up and end play. he told me to just put rings in it.he got very angry when i said need crank.I do not have specs. am i way out of line?or did i get such a great deal .