I showed my son how to do front brakes on his '85 4Runner yesterday. When we pulled the calipers, one was shot- off to the parts store. Got them changed out, new pads, bled the brakes. Everything works well, but the pedal is a lot lower than before. I bled the brakes again just to make sure, no change. They work fine, I just can't figure out why the pedal is so much lower- Any insight? Thanks.