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Old Oct 29, 2015 | 12:38 PM
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Default TH 400 code
Can anyone please decode C73Y 6460 567SN from a TH400 transmission.
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Old Oct 29, 2015 | 01:57 PM
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are you use it's a 400 and not a 350, the SN code shows up for a 350
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Old Oct 29, 2015 | 02:05 PM
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Yes I thought CY was only TH 400
Originally Posted by MelWff
are you use it's a 400 and not a 350, the SN code shows up for a 350
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Old Oct 29, 2015 | 02:20 PM
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Please check this link
http://www.ebay.com/itm/Chevrolet-TH400-Transmission-Turbo-Hydramatic-used-/161815636854?viewitem=&vxp=mtr&item=161815636854&sspagename=ADME%3AX%3ARTQ%3AMOTORS%3A1123&nma=true&si=o6qhK1tz5C4c%252Bd4GbDt%252Bgd8%252FiC4%253D&orig_cvip=true&rt=nc&_trksid=p2047675.l2557
Originally Posted by MelWff
are you use it's a 400 and not a 350, the SN code shows up for a 350
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Old Oct 29, 2015 | 03:40 PM
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I'm no expert but typically the pan layout is how you make a visual distinction, can they send you one?
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Old Oct 29, 2015 | 04:45 PM
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Sorry cant get anymore pictures
Originally Posted by MelWff
I'm no expert but typically the pan layout is how you make a visual distinction, can they send you one?
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Old Oct 30, 2015 | 11:30 AM
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Anyone Please.
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Old Oct 30, 2015 | 06:27 PM
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Looks like a short shaft th400 to me. My info says CY in 73 was 250hp Vette and 245hp Camaro.
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Old Oct 31, 2015 | 11:22 AM
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That is a TH400 from a 73 model. The vacuum modulator is on the
side on a TH400.
On the rear facing back on a Th350.

http://www.400raptor.com/TH350-2.jpg

That and the pan shape tells you for sure.
Here is the TH400 from my 73, you can see the modulator on
the side.







Donnie
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