RC8B3 FT Steel Flywheel, 4-shoe The new optional #81463 RC8B3 FT Title: New! RC8B3 FT 4-shoe steel flywheel is a direct replacement for the standard #81370 RC8B3 aluminum 4-shoe flywheel. The steel flywheel is heavier than the aluminum flywheel and increases the overall rotating mass of the clutch assembly. This offers a more stable engine idle and a smoother bottom end throttle feel. ASC81463 RC8B3 FT 4-shoe Steel Flywheel = ~36 grams ASC81370 RC8B3.1 4-shoe Aluminum flywheel = ~12 grams Fits all RC8B3 and RC8T3 series vehicles and .21 off-road nitro engines. ASC81463 contents: qty 1 Flywheel, 4 Shoe Clutch qty 1 Brass Collet, 4 Shoe Clutch Requires these parts: Flywheel Nut ASC81372 Clutch Shoe Pins ASC81373 Clutch Shoes ASC81402/ASC81375 Clutch Springs ASC81365 Clutch Bell 13T ASC81374 Shims ASC89148 Bearings ASC91560 Washers ASC89218 Screw ASC89223 This item fits the following: RC8B3 RC8B3.1 RC8B3.2 RC8T3 RC8T3.1