2003 Polaris Deep Snow Snowmobiles Service Manual, Page 181Get this manual
DRIVEDRIVEN CLUTCHES High Performance Roller Helix explained
The Helix for the High Performance Roller is designated for the angle and length of the angle on the back side of the helixYou will see that the first number designates the steepest angleThe second number designates the lowest angle, and the last number is measurement of the length of the steepest angle