This is the optional HPI 3 Piece Aluminum Clutch Shoe Set for the Savage series. FEATURES: Constructed of purple anodized aluminum for longer clutch life and service intervals Two different types of springs for different engines, silver springs are recommended for the Nitro Star .25, gold colored is recommended for higher horsepower like the K4.6 engine INCLUDES: Three clutch shoes Three silver clutch springs Three gold clutch springs Three 3x8mm set screws One instruction sheet REQUIRES: Phillips scredriver Flat Blade Screwdriver Needle Nose Pliers, DTXR0300 Threadlock, DTXR2010 3mm Hex Wrench, GPMR8013 COMMENTS: For spare springs, order HPIC6395. The gold and silver clutch shoe springs have different tensions Updated JBM 5-2-06 jxs 7/06/05 ir/jxs