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**Clyde65** · 09-14-2017, 08:24 PM

The pcm must come from a truck with a 6l80 trans, I don't think the 6l80's are as big as the 4l80 though. Anybody know how big the 4l80 is? I'll take some measurements of the 6l80 Saturday.

09-14-2017, 08:24 PM	#8
Clyde65 1965 Chevy C10, 2005 4.8L/4l60 Join Date: Aug 2004 Location: DFW Texas Posts: 8,539	Re: 1966 LS swap info The pcm must come from a truck with a 6l80 trans, I don't think the 6l80's are as big as the 4l80 though. Anybody know how big the 4l80 is? I'll take some measurements of the 6l80 Saturday. __________________ Clyde65 Rebuild of Clyde http://67-72chevytrucks.com/vboard/s...84#post8338184 69 Aristocrat Lo Liner build http://67-72chevytrucks.com/vboard/s...84#post7561684 *support our troops!*