need wiper motor connection help

have a 71 firebird with wiper motor problem had to replace switch with after market but need to know which connections are for park, low and high speed etc..on the wiper motor itself. their are three connections on the right side of the motor and two in the center which i think for the washer. thks

Pick up a wiring diagram and volt meter.

i have power to the switch and to the connector end i need to double check the connectors at the wiper motor to find which is low, high and park etc since i have a after market switch and not stock some had said its a little tricky to connect i have tried two rebuild motors and waiting for the third since one had a loud click when turning and did not move the wiper thru the arc needed the other juist did not move both maybe rebuild faults but would like the info on the connections at the wiper motor just to verify the switch connections.

thks