Re: Brakes are tweaking BADLY!
Often, rear drum brake lock up is cause by contamination of the friction surfaces. Either grease on the shoes, brake fluid distorting the drum, etc. It could also be a master cylinder problem, but thats pretty unlikely. If the front brake master cylinder piston seal were leaking, then you would be getting more pressure to the rear, causeing it to lock up....but I wouldnt worry about that for now. Try replacing the rear shoes...they are pretty cheap. Have the drums turned, or better yet, replace them. Again, It cant hurt,and they shouldnt be too expensive. Also be sure the primary shoe is in its peoper location...and that R and L shoes arent mixed up, if they are different on your axle. Sorry, but thats all that comes to mind right now...friction is our friend, but too much or too little results in an insurance claim!!