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Old 10-22-2017, 04:40 AM   #1
62stepside longbox
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Re: 1960 C10 Mystery "Blue hole"

Looks to me like the hole for a 60-62 clutch master cylinder, if the truck was a manual transmission then I would've been equipped with a different master cylinder, for both the brakes and the clutch. I'm guessing someone swapped to an auto tranny.
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Old 10-22-2017, 04:41 AM   #2
62stepside longbox
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Re: 1960 C10 Mystery "Blue hole"

Like this
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Old 10-22-2017, 04:44 AM   #3
62stepside longbox
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Re: 1960 C10 Mystery "Blue hole"

Factory auto truck would've had a plug like this
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Old 10-22-2017, 12:59 PM   #4
Submariner616
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Re: 1960 C10 Mystery "Blue hole"

Quote:
Originally Posted by 62stepside longbox View Post
Factory auto truck would've had a plug like this
Awesome picture! I wonder if that plug is available somewhere. I haven't seen it in all my online travels through parts websites.
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Old 10-22-2017, 05:05 PM   #5
ImpalaJim
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Re: 1960 C10 Mystery "Blue hole"

Quote:
Originally Posted by Submariner616 View Post
Awesome picture! I wonder if that plug is available somewhere. I haven't seen it in all my online travels through parts websites.
try some ceramic shops! I bet a bank stop would work.
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Old 10-22-2017, 12:56 PM   #6
Submariner616
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Re: 1960 C10 Mystery "Blue hole"

Quote:
Originally Posted by 62stepside longbox View Post
Looks to me like the hole for a 60-62 clutch master cylinder, if the truck was a manual transmission then I would've been equipped with a different master cylinder, for both the brakes and the clutch. I'm guessing someone swapped to an auto tranny.
Although I have never seen one, I was kinda thinking the same thing. However, there is no other indication that it originally had a standard. If someone changed it to an automatic, they did a very thorough job. And the 2 speed powerglide is the proper one, cast iron with no pan.

Does anyone know if there is some way to determine what it was originally built with, other than the "Blue hole"?
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