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03-28-2023, 03:46 PM | #1 |
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1934 Brake Drum Measurement
What is the maximum ID measurement for a 1934 brake drum?
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03-28-2023, 03:55 PM | #2 |
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Re: 1934 Brake Drum Measurement
12.060"
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03-28-2023, 04:21 PM | #3 |
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Re: 1934 Brake Drum Measurement
With absolute respect Brian! Where have you found that spec in any Ford literature? I saw a post somewhere that said to the contrary. I am sure there have been many thousands and perhaps millions turned far past .060. Whether safe or not, and no new drums available, folks will probably take chances. Possibly not as critical for the mechanical brake cars I would think. IMHO.
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03-28-2023, 05:05 PM | #4 |
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Re: 1934 Brake Drum Measurement
12.060" is the Ford Service Bulletin recommendation. Recalling that was printed when you could still buy new ones for a song from Ford, modern experience suggests that 12.090" is the outer limit.
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03-28-2023, 05:38 PM | #5 | |
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Re: 1934 Brake Drum Measurement
Quote:
Just because "there have been thousands and perhaps millions..." doesn't make it smart or safe. Me? I prefer to do things correctly. 12.060" is the Ford spec.
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03-28-2023, 06:22 PM | #6 |
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Re: 1934 Brake Drum Measurement
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03-28-2023, 06:32 PM | #7 |
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Re: 1934 Brake Drum Measurement
Any chance you could post a picture of that bulletin David? Then we could finally put this to bed. I do believe that Kube is absolutely right on better safe than sorry. When the high cost of new parts is extremely high for some of us folks we take the low road and do things we should not do!
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03-28-2023, 07:22 PM | #8 |
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Re: 1934 Brake Drum Measurement
When Colorado still had the annual safety inspection windshield sticker program (many years ago) the rule for machining any brake drum was .060" oversize then it could wear out to .090"
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03-28-2023, 09:42 PM | #9 |
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Re: 1934 Brake Drum Measurement
Sorry, I'm away from my car stuff until next month. Make no mistake, I am not suggesting that the drums be turned past .060.
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