About this 3D model

Tyco / Taiyo Gears Turbo Hopper, Bandit, Twin Turbo, Fast Traxx I have designed various gears to fit some Tyco R/C & Taiyo R/C Vehicles. Each model has two different versions. One that is stock and one that accepts a bearing. I don't know every model these fits so I have listed the Specs. Tyco Turbo Hopper (Same as Fast Traxx I think) Small Gear: (Slow Gear) 10 Teeth 32-Pitch Metric Module = 0.8 Module (.7938 millimeters) Medium Gear: (Fast Gear) 17 Teeth 32-Pitch Metric Module = 0.8 Module (.7938 millimeters) Big Gear: (Spur Gear in the Center) 43 Teeth 42.3-Pitch Metric Module = .6 Tyco Bandit Small Gear: (Slow Gear) 9 Teeth 32-Pitch = 0.8 Module (.7938 millimeters) Medium Gear: (Fast Gear) 12 Teeth 32-Pitch = 0.8 Module (.7938 millimeters) Big Gear: (Spur Gear) 43 Teeth 48-Pitch = 0.53 Module (.5288 millimeters) Tyco Twin Turbo Small Gear: (Slow Gear) 10 Teeth 32-Pitch = 0.8 Module (.7938 millimeters) Medium Gear: (Fast Gear) 16 Teeth 32-Pitch = 0.8 Module (.7938 millimeters) Big Gear: (Spur Gear) 44 Teeth 48-Pitch = 0.53 Module (.5288 millimeters)