leaking from tub above motor

Disconnect unit and remove from under counter. remove lower spray arm, tip over dishwasher on it's back, diconnect wires from motor , unscrew drain fitting rotate motor mounts to and lift pump and motor assembly up and out from inside the dishwasher. thoughly clean all parts during pump disassembly( under running water and a toothbrush works well) . Looking at a parts diagram,and using your memory from disassembly replace the new seals and put it all back together, with patience you can do anything and use common sense.