Quote:
Originally Posted by rsd66C20
Quick question for everyone. I have a 1966 C20 with the original 327 engine (YH - 327 with 3-speed Automatic Transmission). My build sheet confirms this, and also has the Transmission code as CT. I can't find any reference to this transmission code. Were all 3-speed Auto transmissions for 1966 C20's 400s?
BTW....I don't have the original tranny, just interested in what the original build was.
Thx
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Yes , CT is the TH400 transmission code that's specific to truck. Theres a tag on the side of the trans case with this info stamped along with the date.