My windshield wiper arms got out of sync and stopped moving. I could still hear the motor running, but wiper arms do not move. I removed the glove box and the radio. Under the passenger side wiper arm, under the dash, the entire assembly fell off the shaft. Poor design, as nothing but friction is holding this together. No screws or clips. The two arms (under the dash) and cables are off. My question is, what'e the best (easiest) way to fix this? This appears to be a real PITA type job. Any suggestions will be appreciated.