Schumacher Spur Gear Adapter

thingiverse

Direct drive adapter for standard spur gears for Schumacher vintage vehicles (Cougar, Top Cat, Fireblade, etc.) - all that use the Schumacher Whisper style/roll-pin spur gears. This is designed to retain the spur gear using M3 nuts/M3 bolts, and a thin M4 washer between the O-ring and adapter. This should fit relatively tightly, so I recommend reaming with a 4 mm bit (first by hand then with a drill) and checking/re-checking to ensure it can slide on and off in case you want to swap out to an OEM gear.