Cylinder deactivation vs. rear axle ratio

[gn7p71]

From what I have gathered doing research into the workings of cylinder deactivation on the GMT900 SUVs, it seems that the general consensus is that for the early SUVs with the 4-speed auto and 3.73 axle, if one steps up to a 4.10 axle ratio, it will result in the truck kicking into 4 cylinder mode more often on the highway. Would this be because one is in a better place on the power band at the 4.10 ratio? And if so, would this also work on the later 6-speed auto SUVs, i.e. if I were to take my 2012 Tahoe 5.3 and 3.08 axle and bump up to a 3.42, would I also see it kick to 4 cylinder mode in highway driving more often?

 

[andyb]

I'm confused,what are you looking for??

 

[Deephaven]

Lots of DOD settings to play with. Should go in when you coast pretty quick, but comes out quick too. Here are the fields on it that HPT can edit:

 

[gn7p71]

Andyb, I wanted to know if bumping up from 3.08 to 3.42 rear would make the engine go to 4 cyl mode more often at highway speed...seems the computer has tons of DOD related settings...perhaps the major providers of tunes for our trucks may have figured out the optimum tweaks for these

 

[1BADI5]

Yeah having DOD with a 3.73s and 4L60-e did not make much since in my mind......but it scoots and is nice towing

 

[mikebrawn1]

What is HPT?

 

[992dr]

HPT = http://www.hptuners.com/