Just finished spending lots of time and cash on my car and take out for a drive and smell something funny look in my left hand mirror and my rear brake assembly is smoking. Well stop for a while and take it back to my shop and examine the damage. Appeared to be a locked up caliper, so I go by a new one problem is not solved, so I am asking if anyone else agrees that it is the prop valve, or master cylinder. All the othe brakes are fine, I did a rear disc swap about a year ago, and my ride is a 94 dx hb. I have yet to swap prop valves to a 4040 or upgrade master cylinder due to lack of funds. So you guys tell me what you think I am just getting more opinions before I start replacing more parts.