2006-2008 Polaris Snowmobiles FS/FST Service Manual., Page 190Get this manual
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PVT System Spring Free Length
WEIGHT GRAMS PART NUMBER
11 Series Weights
1321849 1321850 1321851 1321730 1321731 1321759 1322004 WEIGHT GRAMS(+- .8g) 11-40 11-42 11-44 11-48 1