We just replaced the main shock and springs in the suspension about a month ago. My neighbor that claims to know about snowmobiles helped (nice to have an extra pair of hands) After finally getting it back in he tentioned the track while I was cleaning up. It all looked good. Now, there is a big groove in the aluminum where the back boogey wheels meet the tentioner. I checked and sure enough, one tention bolt is 2 1/8" while the other is 2 1/2". Is the groove repairable somehow? Any input is greatly appretiated.