Amazon.com: Go Kart/Cart Forward Reverse Gear Box for 2 HP - 11 HP Engine Motor - 35 40 41 : Automotive
Gear Box, Reverse Rotation, Assembly, 1:1 Ratio
Amazon.com: Mophorn Go Kart Forward Reverse Gear Box 10T #40/41 12T #35 Go Karts Accessories TAV2 30 40 41 For 2HP-13HP Engine, Transmission Local Honor, 3 Shift Modes, ONLY Works with 30 Series Torque Converter : Automotive
VEVOR Go Kart Forward Reverse Gear Box 10T #40/41 12T #35 Go Karts Accessories TAV2 30 For 2HP-7HP Engine, Transmission Local Honor, 3 Shift Modes, ONLY Works with 30 Series Torque Converter - Walmart.com