Dont share your download! Make some money for this great work. Tax time is coming and im getting back into legos after 20 years not building. Going to make me a fast rc car. Need strong gears. You should think about more teeth 24 36 and 42 i think. Legos double bevel is good but i bet these will be better. Plus they replace the worms. I'll try to remember you. I might need 2+ sets of these.