I drive a 2000 Celica GT-S (in case you didn't see my sig). Lately, when I am driving on the interstate at about 75 MPH, my hood has started to shake, vibrate, and violently "wobble", for lack of a better term. I adjusted the extendable rubber stoppers in the hood, and, although that helped some, it still shakes. I'd really prefer to go faster than 75, but it gets pretty intense around 80. The car is somewhat old, so the locking mechanism is fairly rusty, and I'm afraid the pressure being put on it will break the lock, and send the hood flying up. Do you guys think I need hood pins, or is there another way to fix this problem that won't affect the looks of my Celi?