so as i understand it the brakes only make up for 10% of the overall brakeing...also i never said that the shoes were worn down only at the top...i replaced the shoes in the back like 2 months ago and they look alomst brand new...with the freshly grounded drums im thinking my scott free...also there is that adjusting screw under the shoes which should be able to either expand or retract how close the shoes are to the drum...if theres humming im guessing they are too close and if its breking shitty then they are too far?....thanks for your response let me know what u think