What is that flappity-flappity-flappity noise coming from the driver side tilt window? Didn’t I just latch it down? On closer inspection, I found that the black plastic pivot inside the latch was cracked, keeping the window from locking down properly.
Apparently these pivots are notoriously flimsy, and the window flapping issue is a common complaint on Toyota trucks. Fortunately, this dude has started manufacturing a solid aluminum replacement pivot. After watching his installation video, we popped the new pivots in on both side windows, and now they both work perfectly.