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03-14-2020, 09:00 PM
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#1 |
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Registered User
Join Date: Aug 2010
Location: Southern CA
Posts: 1,605
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3-on-the-tree trans synchronized?
Does anyone know what year they started synchronizing 3-speed transmissions? Working on a 1966.
Last edited by 1960chevypanel; 03-15-2020 at 03:20 PM. |
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03-14-2020, 09:17 PM
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#2 |
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Registered User
 
Join Date: Feb 2011
Location: Joshua Tree Ca.
Posts: 719
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Re: Is 3-on-the-tree trans synchronized?
I think 1966 or 1967.
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03-15-2020, 03:20 PM
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#3 |
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Registered User
Join Date: Aug 2010
Location: Southern CA
Posts: 1,605
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Re: Is 3-on-the-tree trans synchronized?
Digging a bit more, main case says 3743368. Trans probably not original to truck. Hard finding reliable info but Google says 1958-1963 and might be a Corvette trans. Part of date code is obliterated but looks like K259 so 11/25/1959? I guess not synchro given the year.. Here's a pic:
Last edited by 1960chevypanel; 03-15-2020 at 03:31 PM. |
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03-15-2020, 03:31 PM
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#4 |
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Registered User
Join Date: Aug 2009
Location: Bowser
Posts: 13,522
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Re: Is 3-on-the-tree trans synchronized?
It’s a non synchro Muncie sm318.
They were stock until 68. |
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03-16-2020, 09:00 AM
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#5 |
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Senior Member
Join Date: Oct 2007
Location: Marietta, GA
Posts: 779
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Re: Is 3-on-the-tree trans synchronized?
The smaller, four-bolt-cover transmissions (as pictured above) are non-synchro on 1st, synchronized on 2nd and 3rd.
The later/larger 3-speed with seven-bolt side cover is fully synchronized. |
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03-16-2020, 02:57 PM
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#6 |
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Registered User
Join Date: Feb 2012
Location: pleasant valley--placerville ca
Posts: 3,039
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Re: Is 3-on-the-tree trans synchronized?
built 66-85
__________________
1961 chevy K10 my build is------------61K10 build |
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03-16-2020, 04:53 PM
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#7 |
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Registered User
Join Date: Aug 2010
Location: Southern CA
Posts: 1,605
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Re: Is 3-on-the-tree trans synchronized?
Awesome, thanks guys
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