Hello, thanks for the help.

We have a 2002 Pontiac Grand Prix, 125k miles. Suddenly the other day the driver side wiper shifted so that it goes off the windshield (and obviously broke the wiper). Is there something specific I should look to repair?

Thanks again, Chris

When you install the new arm, check the operation and adjustment of the wiper linkage assembly. Pay particular attention to the condition, and proper torquing, of the mounting bolts. Replace/straighten any bent components.