Impala Tech - View Single Post - My 61 Restore Erath County Texas
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post #33 of (permalink) Old 03-22-2018, 08:00 PM
Big Dave
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Join Date: Jan 2006
Posts: 12,456
 
It's an automatic. Let the programming (the valve body) figure it out for you automatically.

I have a 6L80 in my truck and I can not tell when it shifts up or down, it is so smooth. Only way I would know would be to put in manual and push the shift button as the tach shift points.

Besides your not likely to even notice with a 383 displacement.

Big Dave

Last edited by Big Dave; 03-22-2018 at 11:59 PM.
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