Hate to bump this super old thread, but I ran into this issue. I have the 17" wheels and ordered everything off RockAuto based on that 17" wheel spec. I apparently have the calipers and 338mm rotors for the sport package and my 4runner came with the 319mm rotors. My brake pedal goes almost to the floor to stop, but does stop ok. What can I do to get pedal feel back, is it the master cylinder, proportioning valve or what? Should I just go back to all the smaller stuff?
Listing everything by wheel size really screwed me up!
Brent