So, the obvious answer here that I want to drive home is when you have a brake pull to the right as shown it is not the right-side brakes causing the problem. The issue is the driver side brakes are simply not doing their part (due to an internally collapsed brake hose, seized brake caliper piston or seized brake pads in bracket). So obviously a brake pull will occur towards the properly operating brakes. This concern can also be cause by worn suspension components etc. but when everything else feels right while driving and your only concern is a pull while braking, stick with the brake system first! @ford