hello again, I think I must be missing something. Maybe y'all can help. I realize some pinion/spur combos require some tricky modificatiosn to the t-plate and removing the middle screw and such. My new 12L4 has a 100 t spur and I have removed the middle screw for clearance. I can't fit anything bigger than a 27t pinion on the motor and get proper gear mesh. The only thing I can see left to do is to grind away at the t-plate or remove the spacers between the chassis and the t-plate. Are there anyother options if I want to run a 100t spur? I have been recomended to start my stock motor gearing around 100/31-35 depending on tire size.