Making a long story short.... I have a 1967 FJ40, got it running, went to bleed the brakes and that is where all trouble started... I replaced the front with a 1973 FJ40 axle. I replaced all brake cylinders and shoes with brand new ones and also put a dual reservoir brake master cylinder for safety. I drove down the road and the brakes worked great but after a while the pedal became too hard. I had to get out and back off all of the wheel cylinders and managed to crawl home. I have adjusted both the push rod and the wheel cylinders multiple times and it always ends up locking the pedal up. I have bled the whole system, I know how to adjust the wheel cylinders, and my brake master cylinder does not have a brake booster attached so it definitely isnt the "brake booster push rod." When it is cold, the pedal goes to the floor but after driving for around 5 miles the pedal is rock solid and my brakes get stuck on. I am going to bleed the whole system through again tomorrow and check for air bubbles. I definitely dont have any leaks. I know that there have been threads about this and I have read them but they all talk about adjusting the brake booster push rod and I dont have one. Is it the adjustment of my normal push rod that needs to change? How do I measure it? Does anybody have a solution to this?