hey all,
I need some help guys. I have a 78 (actually my dad's daily driver) 4x4, about 6 months ago, the trucks didn't seem to be as strong as they had been(used to stop on a dime) anyway, you had to put the peddle all the way to the floor to make it stop but it didn't even feel like it had any power to it(it has power brakes, btw) anyway, we replaced the proportioning valve, didn't do anything, put new pads on it and it didn't help either. We ended up tightening the rear drums up to make it stop, and it will, but it doesn't have any of the power it used to. The front calipers are touching the rotors at least (vibrates, needs to be turned) but it's like it has no power. I've also replaced the master cylinder and bled the lines, still the same. Could it be that power booster? It will stop, but you gotta put some pressure on that peddle, it used to be you barely had to have any force on it to make it stop(all old chevies i've ever drove felt like that) Anyway, is there something yall know of that might help? I think it has to have to do with those front calipers because you can't feel the front end bite down like usual when you stomp them to come to a quick halt. Any help yall can offer would be really appreciated! Also, it has new front pads.
Thanks! TB