ALL REBUILD KITS ARE NOT EQUAL! Why is our kit a few bucks more??? It's more bang for the buck with better parts!!! The HRSS Ski-doo TRA Primary Clutch rebuild kit fits most 2007-2017 2 stroke clutches. Our kit includes an oem style tra bushing and circlip. Our kit also includes rollers, roller washers, sliding pucks and a FBP oversize o-ring kit, and the moveable sheave bushing and lock rings. This brings your worn out rattler back into factory new specification and keeps the clutch system working properly. Check your clutches at regular intervals and replace all worn parts. See our Ski-doo tools section for bushing installers and more great service items.