I've read probably 100 posts on brakes and bleeding and double pumping. I've bled all 4 calipers in proper order 5 times and am getting NO air bubbles. I can push the brake once and it is soft. I pump 2-3 times and I can lock the rear. Could it be that the bleeder on the new IFS calipers in front is on the bottom and air is trapped in the top? When I pump the pedal to firm and hold it, it stays put and doesn't sink. I've adjusted the Wilwood porportioning valve for the rear to try and increase front pressure without any effect on the fronts. I have an FJ80 master cylinder and the drum brake booster. Could it be the drum booster giving me the soft pedal? I have not pulled the master cylinder because it looks ok outside. I have all stainless brake lines and no visible leaks. The fluid was definitely of a dark color. Could this have corroded inside the MC? Thanks in advance for ideas and troubleshooting procedures. I've been jacking with this for three days
