RE: Snowmobile Hop ups?
You need to buy very small machine screws and nuts. Use your drill and and drill 3 holes evenely throughout the track so the machine screws can slip through. Fold over the aluminum strips and poke a hole through the strip where the hole is in the track and attach your screws and bolts. Locktite them and do so for each tread. You need very very small machine screws and are not cheap. I believe it cost me $35 to attach mine. Good luck