Where I can find The top bumpers LB RB micro switches that are good quality. I replace them with those chinese that are sold in lots and they are crap many come faulty and other wont last enough.
90 degree PCB (through hole) mount tactile switch, you'll have to measure yours, I have none on hand.. any decent electronics shop will have them, what part of the world are you in?
thanks leham sadly here in Puerto Rico there are no electronic shop anymore, I have to shop online even for common components. The last one that can be called electronic shop was radio shack and is also gone.