1973 RR Wiper Arm Install

[72RoadrunnerGTX]

Didn't know that! I mean, I knew the laters setup ( post 72 I think ? ) with the tower on cap for the parking switch, but didn't know it was specifically to retrofit them on earliers, just thought on a rebuild kit.

Around the same time the of the newer park switch plate design went into the production cars, the replacement part number for the older park switch plate superseded to that kit. The older switch plate design had a pretty high failure rate, the new design was to address it. With the older motors the gear shaft needs to be replaced as well to work with the new switch plate. Pretty common repair at the dealers back then, have done quite a few.