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trfour · 11-21-2009, 03:06 PM

This video should help you;
http://www.youtube.com/user/recdirectweb

"tunnel protectors? Purpose?"... The tunnel is the part of your snowmobile chassis that the track runs inside of. With studs installed on the track, if the track frame suspension were to bottom out, the studs could hit and tear up the tunnel area, or even worse take out a heat exchanger.

I installed hyfax using stainless steal rivets on all of my sleds. Keep in mind that you want to have about 1" side to side clearance so the studs do not hit the hyfax.

Hyfax is inexpensive. You will need the year, make and model of your sled to purchase the stud kit, for proper clearances.

Good luck and Happy sledding.

11-21-2009, 03:06 PM	#12
trfour Senior Member Join Date: Nov 2002 Location: The Lakes, Central NH. and Dallas/Fort Worth TX. Posts: 3,694 Blog Entries: 3 Thanks: 3,069 Thanked 472 Times in 236 Posts	we're golden... This video should help you; http://www.youtube.com/user/recdirectweb "tunnel protectors? Purpose?"... The tunnel is the part of your snowmobile chassis that the track runs inside of. With studs installed on the track, if the track frame suspension were to bottom out, the studs could hit and tear up the tunnel area, or even worse take out a heat exchanger. I installed hyfax using stainless steal rivets on all of my sleds. Keep in mind that you want to have about 1" side to side clearance so the studs do not hit the hyfax. Hyfax is inexpensive. You will need the year, make and model of your sled to purchase the stud kit, for proper clearances. Good luck and Happy sledding. __________________ *trfour* Always Remember, The Best Safety Device In The Boat, or on a PWC Snowmobile etc., Is YOU! Safe sledding tips and much more; http://www.snowmobile.org/snowmobiling-safety.html Last edited by trfour; 11-21-2009 at 10:20 PM.