Thread: 4L80 vs 6L80
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Old 09-18-2021, 11:55 AM   #1
Ziegelsteinfaust
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Join Date: Dec 2012
Location: Temple City
Posts: 3,562
4L80 vs 6L80

This week I have been driving my truck, and got the rebuilder to adjust the trans. The T700R4 was built for a car, and not ideal for what my truck is. It has a 2500 rpm stall, and no lock provisions.

So my plan is to replace it when I decide on a couple of options I need to package.

I asked my trans guy about the 6L80, and he was not a big fan. He didn't hate them, but said inwould be better off with a 4L80. Which is my other choice. Especially if I decide to run the Holley fuel injection since it will control the trans too.

The 6L80 I am a fan of from my 18 Silverado, but the T700 is great. Just not right for the truck when I go to do truck things.

Are 6L80 swaps not that good idea using the stand alone controllers?
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