ok, I was replying to Greendragon's original post at the beginning of the thread...

"I'm working on disc brake conversion kits for 48-56's.
i'd like an idea of how many people are interested. that way i can decide if i want to make a large run of parts, or make the kits as needed."

JW, I can see that the compensating port in the master is not open. The master is brand new. I tried to use a Kanter rebuild kit with my old master but it never worked again.

ozstatman, thanks, I was a member on here before but lost my password and never got an email telling my my password...

Bob1951, three wheels are affected, driver front and both rear.

I suppose I need to get another master cylinder. Not what I was hoping for.

I'm having trouble with my '53 Junior's brakes. I replaced every brake component except the backing plates 2 months ago. Over 1000 miles of daily driving, I started to notice the driver front wheel grabbing during braking. It got progressively worse to the poing the wheel would lock up and I would have to slam the pedal to free the wheel.

I had my friend spin a wheel with the car on jacks while I pressed the brake. The wheel immediately locked up and did not release until the bleeder screw was opened.

I have heard every shadetree diagnosis from bad rubber lines to wheel cyls, to a blocked compensating port.

I replaced the wheel cyls for a second time, adjusted the brake pedal pushrod, checked rubber lines, re-bled the system, all to no avail.

Is this a common problem? What am I missing?

I would buy your kit for my 53 junior daily driver. I can't seem to get the drum brakes to work properly.