I have been trying to get working wipers on my 74 Powerwagon, and just got the motor working, but all the connecting linkedge was all off in the cowl area. I got new attachment bushing, and got the long,left, to right arm on, but haveing a problem with the short one. One side of the arm has an angle in it, and the other is straight. Any one know what side attaches to the motor? Thanks.