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Old Yesterday, 10:01 AM   #1
72c20customcamper
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Manual drum brake issue

I redid all the brakes on my 68 consisting of new shoes, cylinders and had the drums resurfaced last fall . The brakes pulled slightly to the right so I adjusted the shoes to full lock and then backed off till there was drag on all four. I took it out today and was on my gravel driveway . It’s a long drive so I got it up to 20-25 mph and slammed the brakes. Both passenger brakes locked up and skidded on the gravel . Drivers side didn’t even disrupt the gravel . I drove around around applying the brakes and the left front/rear got warm so I know they are active. But not working properly I’m going to pull a drum and look at the shoes anything I should look for ?

It’s puzzling that one side isn’t working but the other side works great .
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Last edited by 72c20customcamper; Yesterday at 03:27 PM.
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Old Yesterday, 11:57 AM   #2
72c20customcamper
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Re: Manual drum brake issue

I’m a dumb ass don’t rush doing brakes . Rear the push pin from the wheel cylinder was not engaged . Not sure what the issue was on the fronts I scuffed the rotor and shoes didn’t see any problem but I can lock up all four on blacktop now .
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72 c20 custom camper Husky edition,
66 SS396 Chevelle 1964 Hawk, 63 Avanti,62 lark
1969 AMX ,
1968 c20 stepside ,85 K20
1977 Suburban sold
68 anniversary.
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Old Yesterday, 01:55 PM   #3
Rust_never_sleeps
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Re: Manual drum brake issue

It's been a long time since I've seen new brake shoes, but those don't look new ;-)
Good you got is sorted out
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Old Yesterday, 03:24 PM   #4
72c20customcamper
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Re: Manual drum brake issue

Quote:
Originally Posted by Rust_never_sleeps View Post
It's been a long time since I've seen new brake shoes, but those don't look new ;-)
Good you got is sorted out
I put them on last year been sitting in my barn with about 2 miles on them. The rust is what came off the drums from sitting and may be the reason the front wasn’t working well till after I cleaned the shoes and drum . Cobwebs in the first picture tells the tale

Edited the first post to reflect the time period
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72 c20 custom camper Husky edition,
66 SS396 Chevelle 1964 Hawk, 63 Avanti,62 lark
1969 AMX ,
1968 c20 stepside ,85 K20
1977 Suburban sold
68 anniversary.

Last edited by 72c20customcamper; Yesterday at 03:30 PM.
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Old Yesterday, 03:37 PM   #5
72c20customcamper
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Re: Manual drum brake issue

I did the brakes last August .
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72 c20 custom camper Husky edition,
66 SS396 Chevelle 1964 Hawk, 63 Avanti,62 lark
1969 AMX ,
1968 c20 stepside ,85 K20
1977 Suburban sold
68 anniversary.
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Old Yesterday, 08:55 PM   #6
custom10nut
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Re: Manual drum brake issue

Though it didn’t involve my 70, (original 4 wheel drums), I went through the same struggle on my Dually. I had to replace one of the cylinders on the rear, and had that hub on and of no less than five times before I finally figured out that I forgot one of the small levers for the auto adjuster.
The conundrum was that the hubs are so bulky that I didn’t want to take the other side off to use it as a reference. In the end, that would have been a WHOLE lot easier
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Old Today, 12:07 AM   #7
Sheepdip
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Re: Manual drum brake issue

I can't count on my fingers and toes how many brake jobs I've done over the years, but I always take a picture before I start....my memory is short but a picture is the ticket to success.

Before todays tech I had one of them polaroid instant picture cameras
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Old Today, 12:16 AM   #8
Getter-Done
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Re: Manual drum brake issue

Quote:
Originally Posted by Sheepdip View Post
I can't count on my fingers and toes how many brake jobs I've done over the years, but I always take a picture before I start....my memory is short, but a picture is the ticket to success.

Before today's tech I had one of them polaroid instant picture cameras
That's the picture that you needed to (Shake) fan it till dry.
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Old Today, 12:19 AM   #9
Sheepdip
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Re: Manual drum brake issue

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Originally Posted by Getter-Done View Post
That's the picture that you needed to (Shake) fan it till dry.
Yep that be the one!
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