The wiper motor that you bought is a factory style 2 speed wiper motor, entirely different beast than the Three speed/variable speed model. The 2 speed motor has a plug at the end of the wires from the bulkhead connector that plugs into the spade connectors, plus you would need a ballast resistor (not the same kind as the ignition ballast resistor, but looks similar and smaller) or it really can't work (it is mounted over the gold strap). I seem to remember that you also have to use a 2 speed arm for the motor as opposed to the 3 speed arm on your current wiper motor. It is not a simple thing to switch motors because the entire system is different. Oh, yeah, you also need a 2 speed switch...
