Join Date: Mar 2011
Location: Mid Hudson Valley, NY (USA)
Re: Rear Wiper Arm Replacement
It is just something that you are going to have to do battle with. You'll notice by looking at the new arm that the bushing is ridged and tapered. Tightening the nut presses it on, and it's not going to come off willingly. Basics:
1) Penetrating oil to loosen the 'cold weld' effects of dissimilar metals pressed together.
2) Grab whats left of the arm and wiggle it
3) With a wood block wrapped in soft cloth to protect the glass and bodywork, get something underneath to very gently pry upward while wiggling the arm.
With luck, it should eventually come loose.
Current: '15 Sienna Limited Premium FWD, '14 Subaru Outback, '13 Honda CRV AWD.
Past: '08 Sienna LE (FWD), '02 Subaru Outback