U-Joint Driveshaft and Differential for Toroidal Piston Engine and 2 Speed Gearbox (Without Engine and Gearbox)

A U-Joint Driveshaft and Differential that should connect to my Toroidal Piston Engine and 2 Speed Gearbox. If you wish to print this i have designed it to be assembled with 12 and 8 mm long m2 screws and 3 bearings with an inside diameter of 8 mm outside diameter of 22 mm and a width of 7 mm (standard skateboard bearing size).