My brakes work very well, thanks.
My point is that the pressure in the lines might be the same at all four wheel cylinders but the pressure of the shoes on the drums can vary.
When my brakes pulled to one side, they only did so initially. That's because the pressure in the lines pushed all the shoes the same amount. The shoes that were adjusted properly made contact with the drum first, THEN as I continued to brake, the "loose" shoes caught up and the braking became even. Another variable is that one side may take more pressure to push the shoes than the other because of friction variables within the mechanical framework. If the shoes are adjusted equally, and properly, the friction factor plays less of a part.
Again, what you say is technically correct but due to the variables in an imperfect, Stovebolt world, brakes WILL pull to one side if not adjusted properly.
Thank you, and good night....
