This is a T400 Gearbox with 3:1 Gear Ratio and uses Ball Bearings. For use with the Great Planes Park Flyers. COMMENTS: For T-400 motor, use GPMG0325. There was...More

This is a T400 Gearbox with 3:1 Gear Ratio and uses Ball Bearings. For use with the Great Planes Park Flyers. COMMENTS: For T-400 motor, use GPMG0325. There was some question whether this is really a 3:1 ratio. Not to worry. That is because 34 teeth to 11 teeth equates to 3.09090909 to 1 thus rounded to 3:1 JAL 6/1/01 ir/jl up tjt 6/29/01Less