well yea i understand that, i mean if i control the brake pedal to not lock up my tires, it feels like the rears arent working, i had a better stopping distance with the drum in the rear. lol
im thinking theres not enough fluid going into the calipers being that it had small wheel cylinder before, and now the pistons int the callipers take more fluid to move, i do not think theres enogh fluid being sent to the rear.
and if i jack up the car and depress the brake pedal the tire will not roll, so i know the brake system is in working condition...