It's just math. Engine rpm x transmission ratio x t-case ratio x axle ratio x tire circumference = ground speed.By not having 5th and 6th gear, are you losing anything beyond better gas mileage?
I’m asking is because if the Jeep is still quick enough to merge onto a highway with other drivers zipping by and you don’t feel like you’re driving a small beat down pinto without any zip, then what’s the actual trade-off and why wouldn’t everyone (who isn’t into rock crawling) just do 37s instead of 35s?
It’s too bad there aren’t more 6-speed lifted JLs at my local dealerships here in MD so I could find out for myself what the difference really feels like.
You can mix and match a variety of transmission ratios, axle ratios, and tire circumferences and still end up with exact same rpm-to-ground-speed ratio. The engine has no clue and honestly doesn't care how you get to that ratio.