Buying a used 2018 X15

[Camstyn]

(12-11-2021 )Rawze Wrote:  

(12-11-2021 )Camstyn Wrote:  ...
16spd direct drive autoshit with 2.64 rears
...

just my opinion...

you'de be hard pressed to get that thing to stay in the 1500-1800 RPM rage like it should be driven in a pull w that auto-s$itter. On top of that, it will not get out of its own way when heavy vs the 3.79's you have in your other truck. .. Its geared too tall in the back-end, and it will suffer fuel economy issues, torturing the engne by lugging it into an agonizing death everywhere it goes. I see it loosing easily, 0.6 - 1.3+ mpg across the board on it vs. a decent driver who knows how to shift and a decent set of rears instead of the garbage you mentioned, if your running 80k loads. Thats several thousands of $$$ a year going straight out the tail pipe for likely, no good reason.

It’s a direct drive transmission, so final drive will put me at the same RPM at the same cruising speed as my other truck with 3.73’s and 18 double over (1400@62mph in top gear, 1500@58mph down 1 gear). I guess I don’t understand what the difference is, other than it sounds bad on paper without taking the transmission ratio into account.

I’ve driven an ultrashift before, you can operate it just like a manual using the toggle rather than letting it do it’s own thing, which would result in a lot of lugging. Other than losing the physical clutch pedal and shift tower I should be able to replicate the same driving habits with the ultrashift. I do plan to control the RPm’s with the toggle to avoid what you are describing.