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Old 09-10-2002, 10:04 PM   #1
Fast68Chevy
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dana 60 12 x 2½" drums turn down dimension ?

anyone know what the max diameter of the drum surface on 67 dana 60 3/4 ton drums is ? anyone got a service or overhaul manual for 67-72 with this info ? i need ot find out asap

thanks
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Old 09-10-2002, 10:17 PM   #2
tom hand
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The max is usally on the inside "rim" of the drum. I not sure what year they started doing that.
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Old 09-11-2002, 01:39 PM   #3
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hmm interesting,, ill have to try that, i inspected all over the outside and saw nothing, so inside ill check then, thanks Tom.


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Old 09-11-2002, 03:30 PM   #4
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Most part stores can tell you the min. thickness.
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Old 09-11-2002, 06:09 PM   #5
Stout72
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I believe the ID can go out to 12.60" max. I just put new rear drums on my truck a couple of months ago, it's stamped on the inside edge, but I can't read it now becauce the backing plate obscures it. I'd have to check my notebook at home, but I'm pretty sure it's 12.60
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Old 09-11-2002, 06:25 PM   #6
OhioDan
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Randy, according to my factory shop manual CD for 1970, it says that rims up to 14" can be machined .060". Hope this helps?
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Old 09-12-2002, 01:18 AM   #7
Fast68Chevy
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rims ? you mean drums ?

12.60 ? hmm

or is it supposed ot be 12.060 ?

hmmm

i suppose min is 12.000" and max is 12.060 ?

thanks,
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Old 09-12-2002, 11:44 AM   #8
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Whoops!! Pardon my decimal place. It is 12.060, as in sixty thousandths over. Nice catch.
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