Does the six speed auto have deeper lower gear ratios and similar overdrive ratios as a 4 speed auto or are their just two more over drive ratios available?
https://www.atiracing.com/products/trans/6L80E8L90E/index.htm#:~:text=The 6L80E has a gear,67. 200r4 So 6L80 4.03 2.36 1.53 1.15 .85 .67 Vs 200 1st gear: 2.74 2nd gear: 1.57 3rd gear: 1 4th gear: .67 6l80, I could run a 3.55 gear (or almost whatever you would want). I believe I had a 6L80 in my 2009 G8. It had 360 HP and felt like a lot more. The 4.03 first makes some sense now. I think those cars came with a 2.92 rear (?) and a common swap was moving to the Camaro 3.42 rear
Yes the 6 speed is amazing! Highly recommended. My tow rig has a modified 6.0 with the 6 speed and it’s great. My neighbor runs 1000 wheel Hp with a stock 6 speed and a triple disk converter. unlike all the 4L60E, 80E, etc the 6 speed trans is very beefy and can handle big power from factory. It’s a bit larger and heavier but I feel it’s worth it.