I have a 2004 sno pro that I had speared the rails through the track. The previous owner must have had the limiter straps too loose and the rails caught on the 3.00 pitch track. He put the 05 drivers and track on to "upgrade" the sled, which just caused me lots of headaches. I am trying to find out which year my rails are so I can get the correct plastic rail nosepieces. The 2004 style has the bolt hole for the hyfax in the front, and the 2005 has it in the rear, with the additional support and half moon shaped hole in the top of the rear of the rail. My rails do not have this half moon hole, and the hyfax bolt in the rear. Is this a different year rail from a different sled or is it just a goof from the factory? Also, I asked before but would there be any problem or chance of me spearing my track again if I ran the 2005 style nosepieces on my rails? they seem to be a less extreme angle for the track to come in contact with the rail, but are smaller than the 2004 style. The attached pictures are of the 2004 and 2005 rails just in case it might help. Thanks!