Mtnviper
Vendor
The 153" 2.6" track is a 3" pitch track. I believe that the 137" sleds come with 2.86" pitch drivers, but I could be wrong about that. If so then you'll need to change the driver's out for 3" pitch drivers.
3" pitch driver's come in both 8 tooth and 7 tooth. You can run either one with a 2.6" although I've found that with 7 tooth drivers it provides more gearing options due to the smaller diameter driver. (a smaller driver effectively reduces the gear ratio by about 12% compared to a 3" pitch 8 tooth driver. http://fourstrokesolutionsllc.webs.com/snowmobilerelatedtech.htm
3" pitch driver's come in both 8 tooth and 7 tooth. You can run either one with a 2.6" although I've found that with 7 tooth drivers it provides more gearing options due to the smaller diameter driver. (a smaller driver effectively reduces the gear ratio by about 12% compared to a 3" pitch 8 tooth driver. http://fourstrokesolutionsllc.webs.com/snowmobilerelatedtech.htm
