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Old 08-11-2016, 08:19 AM   #1
RyansToy
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Brake Drum Adjustment - New drums

So the old drum had a access port on the Drum itself... Usually see that on the backing plate.

New drum does not have it. Do you guys do something different? cut a hole in the backing plate?

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1968 GMC truck
910 Trim (Canadian)
127" WB
3 on the Three Trans (Saginaw SM330)
250 ci L6 Engine
HEI ignition (early 80s L6)
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Old 08-11-2016, 12:01 PM   #2
TheFix
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Re: Brake Drum Adjustment - New drums

I kind of wondered the same thing. I thought of just putting a hole in the drum like the original, can't understand why there isn't one in the backing plate.
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Old 08-11-2016, 01:18 PM   #3
mrlobster
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Re: Brake Drum Adjustment - New drums

I had the same issue, so I took it to a local machine shop and they put holes in both drums for $20CAN.
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Old 08-11-2016, 01:18 PM   #4
RyansToy
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Re: Brake Drum Adjustment - New drums

I thought about that. Did you notice it out of balance after that though?
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1968 GMC truck
910 Trim (Canadian)
127" WB
3 on the Three Trans (Saginaw SM330)
250 ci L6 Engine
HEI ignition (early 80s L6)
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