Hey yall, I'm having trouble with my brakes not releasing. I changed wheel cylinders thinking that had to be it, but that was not the prob. Master cylinder is not that old, Somtimes they release and sometimes they don't. weird. One guy at work said the inside of the old hoses might br braking down and little peices of rubber stopping things up. I have bled them and bled them. What do yall think? Any suggestions? thanks. 1965 stepside, drums all the way around. old style single master cylinder.