Chrysler Repair: Chrysler T & C rear wiper, stub shaft, motor shaft

Question
Roland, how do you remove the wiper arm from the the rear wiper motor shaft on a 1996 Chrysler Town & Country mini van? I caught the wiper arm on the bottom of my garage door and pulled up the wiper arm when I was backing up my mini van with the rear hatch door open. This apparently stripped the motor shaft and it needs to be replaced. I checked the Chilton manual for 1996 Chrysler mini van, but it only gives instructions on how to access the motor and not how to remove the wiper arm, which has to be done before you can pull the wiper arm shaft thru the rear window. I would appreciate any help that you can give me. Thanks

Answer
Hi Glenn,
I haven't worked with any arms on vans or on cars older than my '89 LeBaron. But a manual that I have for the '96 Cirrus/Stratus describes front windshield arms that appear to have some sort of a removable trim cover at the pivot point which hides a nut. You "unsnap the arm cover and rock gently from side to side and slide away from arm pivot". Then you remove the retention nut. Then you still have to gently rock the knurled socket of the arm from the matching knurled end of the pivot, by gently rocking side to side and sliding it away from the pivot. It also speaks of a universal "puller" to hook under the edge of the socket and use it to extract the arm off the pivot (but you have to be careful that the fingers of the puller are not pulling on the shaft knurling but just on the edge of the knurled socket of the arm proper. So take a closer look at the arm construction at the pivot to see if you can find a removable cover, and then again look at the arm socket/pivot interface to see if you can't ID two different kinds of metal that represent a socket/stub shaft interface that you can separate from oneaother by rocking and pulling or maybe even gently levering with the tip of a screwdriver.
Roland