Brakes: 1966 6 cyl. auto Cruiser Concern

[fpd]

After driving the car 30 miles, I found that on moderate braking the rear end / rear brakes were making a new sound. The brakes are all drum, with new shoes and springs. On deceleration, it made a low 'thrum' sound with brakes applied, as if there were a 'flat' spot on the tire tread. Tires are in fine shape, no flat spots or uneven wear. I have checked the brakes, and no obvious issues observed. Very minor differential leak out the right axle seal, 90 wt gear oil is where it ought to be. I use the car to get to work two to three days a week. Yes, with shelter in place, my work is considered essential, as is my wifes employment. We are both blessed. I do need to be able to use the Cruiser when my Wife's work is on a different schedule. And I don't want to drive if I am going to create a road problem. Any experience with this on the 64-66 4 door sedans? I do love my 230 Cruiser. much fun to drive, and folks just haven't seen one in my county. Thanks in advance, Fred

[studegary]

Are the brake shoes adjusted for the proper clearance?

[abkco]

I agree with Gary. It sounds like a clearance problem. I have a 65 Cruiser one County away in Napa. Couldn't be happier with it. Incredibly reliable.

[fpd]

Thank you - I adjust the brakes until the drum won't turn by hand, then back off until I have minor drag with the wheel attached.

[studegary]

Thank you - I adjust the brakes until the drum won't turn by hand, then back off until I have minor drag with the wheel attached.

Sounds good. I guess that it is something else.

[StudeRich]

One possibility with a Flanged Axle as you should have, is that there are issues with the Wheel Bearing and or the "Adjuster Ring" on it that requires proper adjustment per the Shop Manual.