So on my lunch break yesterday I took the caliper off and pulled the guide pins, the one didn't have any lube on it and was stiff when pushing on it compared to the other one. I pulled both of them and cleaned them really good with brake cleaner and a wire brush, put some brake lube on them and so far so good. I got it up to 60 and laid on the brakes hard and no shaking. It does look like it wore down the inner pad a lot since I last inspected them. The outer pad has about 1/4" and the top of the inner pad has about 3/16" and the bottom of the pad has about 1/8" (the 1/8" side was the side the guide pin was sticking). So I'm going to drive it for a week or so and get new pads if everything still seems good.