Sometimes wiper arms that are bolted on can become fused on the wiper rod. They are secured with a nut to hold the arm in place which can cause the corrosion to occur. It was difficult to remove these wiper arms without breaking or damaging them or scratching the cowling.
With the GT Tools Wiper Puller For Bolted-On Wipers, simply remove the wiper nut, slide the tool over the arm until the jaws touch the wiper post, then turn the T-handle clockwise until the wiper arm pops from the wiper post.
