How many miles have the discs pads done ?
Did the pads have the break in coating on them a really rough surface like a ripply surface ?
They should feel extremly good do they need bleeding or is the pedal hard, with no free play, when you rebuilt your brakes do you mean new seals etc, as the pistons regularly seize on 2wd, my car had 6 out of 8 seized when I got it.
tabetha