Whoa,....Stop,...(pun inteneded),....but seriously folks,...Before you open up the system,...Didja adjust the brakes??? Usually the self adjusters don't,....raise the wheels offa the dirt and give those adjusters a couple of turns till you just start to feel the drag while spinnin the wheel, then pump the brakes a couple times to "recenter" the shoes. Repeat untill the drag on all four feel the same. This is probably the most forgotten step in 90% of all brake jobs. If all is good you'll have a much higher and firmer pedal and staight line stopping...