I did a rebuild on my 69 brake system. It has the manual 4 wheel drum setup. All brake components are new except parking brake cables and backing plates. Almost immediately after letting the self adjusters do their thing I noticed a little rub on each wheel revolution. After inspecting the brakes 3 times and not finding any issues i noticed the shoes on the ps were cutting into the backing plate ever so slightly and the inside of the drum was scored from the edge of the shoes. I gave the hub a spin and noticed a 2-3mm drop in one spot as it rotates. My thoughts are either the axle itself is bent, or perhaps the housing. Anybody have any thoughts on this? And also recommendations on sourcing a new axle if need be. I'm also not sure where to find the info on my specific gear ratio, etc. Cheers, -Michael
You can take the drum off and run the car on jack stands to see if the axle is bent. Also check to make sure the drum is seating all the way on the axle flange.
You really have to be careful with the quality of aftermarket parts these days. Not saying that's your issue but. Like I ordered a new brake rotor, Bendix brand(good company, should be good to go right?), when it arrived in a plain white box I knew I had bought some Chineese product. The outside of the hub was not the size it was supposed to be and my spacer wouldn't fit over it. You may ask how do I know the hub was the wrong size and not the spacer? Well for one thing the other side fit perfectly and I had the spacer made to order by an American company that specializes machining spacers to spec. I was able to use it after some fixing and am still waiting for it to warp anyday.