Electric wiper motors come in a variety of arc choices, some as much as 125 degrees. When you bought the motor did you check to see if it was a 100 degree unit? Also are you sure the wiper motor is the correct voltage for your truck? If your truck is 6 volts and you put a 12 volt wiper motor in it the wiper motor is going to run a lot slower than it is supposed to.
Last edited by ddalesr3; 02/01/2008 2:39 AM.