Got my electric wiper kit but when I took it out the shims fell out and the springs. I believe I got the springs back in the proper order. Two big springs in the holes and inside those springs the smaller springs. I can't figure out where the shims go. Does anybody have a schematic or pictures to put it back together? I am doing this conversion at the same time as me heater core and heater box gaskets. I think I need to order the piece that screws on to the heater core for the other hose to connect mine has a little rust on it