So we're finally close to purchasing a Tahoe except for a couple things.
Choosing between a 5.3 6 speed with the max trailering pkg 3.42 rear gears, or the 6.2 10 speed w/3.23's. Whatever I end up with will be 4WD and hopefully in the 15-30k mileage range.
I have a small amount of knowledge on the 6L80/90 transmissions in stock form, but none on the 10 speeds. I have very limited knowledge about tunes/tuners but have good amount of automotive knowledge and background. I recently test drove a 2020 Tahoe 5.3 w/3.42's and couldn't even feel it shift. Last year my wife and I rented a 2020 Expedition with the 10 speed and same thing: slosh box and it did a lot of whining at idle after several hundred miles (truck had 20k on it). Impressed with the power the Expedition had.
1) If I purchase a programmer (Hypertech, superchips, HP Tuner), is it possible to make either transmission shift firm and be reliable for 100k+?
2) Seems like both engines are reliable, but after test driving a 2020 Tahoe 5.3 w/3.42s, I wasn't impressed with the amount of power it didn't seem to have. I do admit I wasn't putting it to the wood, but drove it like I would my '05 L33 Silverado. Choosing the 6.2 seems like a no brainer except the unknown (to me) reliability of the 10 speed trans. Anyone on here with a lot of miles on a 10 speed? Opinions?
3) Seems like either choice, they get about the same fuel mileage. Those here who have a tune/tuner, does that fuel mileage tend to go up, or down? How much.
At some point I may put an A/T tire on it, no lift, maybe a level lift if they need it.
Thanks in advance.
Choosing between a 5.3 6 speed with the max trailering pkg 3.42 rear gears, or the 6.2 10 speed w/3.23's. Whatever I end up with will be 4WD and hopefully in the 15-30k mileage range.
I have a small amount of knowledge on the 6L80/90 transmissions in stock form, but none on the 10 speeds. I have very limited knowledge about tunes/tuners but have good amount of automotive knowledge and background. I recently test drove a 2020 Tahoe 5.3 w/3.42's and couldn't even feel it shift. Last year my wife and I rented a 2020 Expedition with the 10 speed and same thing: slosh box and it did a lot of whining at idle after several hundred miles (truck had 20k on it). Impressed with the power the Expedition had.
1) If I purchase a programmer (Hypertech, superchips, HP Tuner), is it possible to make either transmission shift firm and be reliable for 100k+?
2) Seems like both engines are reliable, but after test driving a 2020 Tahoe 5.3 w/3.42s, I wasn't impressed with the amount of power it didn't seem to have. I do admit I wasn't putting it to the wood, but drove it like I would my '05 L33 Silverado. Choosing the 6.2 seems like a no brainer except the unknown (to me) reliability of the 10 speed trans. Anyone on here with a lot of miles on a 10 speed? Opinions?
3) Seems like either choice, they get about the same fuel mileage. Those here who have a tune/tuner, does that fuel mileage tend to go up, or down? How much.
At some point I may put an A/T tire on it, no lift, maybe a level lift if they need it.
Thanks in advance.