hi! I noticed in the last 3 days that sometimes when breaking the left front of the truck would 'rumble' and make a scratching noise (but not your typical high-pitched screeching noise that break pads make when its time for new ones). It's quite noticeable, and only happens sometimes, though it's occuring more often now.
So I pulled of the left front tire/wheel and inspected the break pads. It seems that the inner break pad's actual pad is compeletely gone while the outer still has plenty left on it. Here's a picture of it so you can get an idea of what it is im up against: