The wiper arms are really difficult because of the lack of room; you can't get a big puller in there and you can't use the windshield for leverage. I used a small, two jaw battery terminal puller. I worked well for me, but was useless for another tt owner here in St. Louis. As for getting those bolts off: let oil soak in and then use a torch to heat them up. Heat works great for getting your nuts off! ; )