The brake pedal pushing effort will increase because the master cylinder piston surface area will be larger.
Though the larger MC piston will increase the hydraulic pressure in the lines and at the wheel cylinders.
Now being the trucks use the same cab sheet metal, same transmissions, bell housings, chances are the brake pedals should be the same. So they will have the same mechanical leverage advantage. So if the only difference between the trucks is the MC piston dia. then your foot should not feel the difference. For the difference in MC piston size is for different weight rating of the truck models.
Last edited by 32vld; 06/30/2015 1:55 PM.
