Anyone Upgrade Max Tow to Rubicon 33's?

[jrb517]

Looking to upgrade my max-tow sport s to some JLUR take-offs with the 33 BFG KO2s. Anyone notice a drivability/shifting/mpg difference with the 4.10 ratio on stock wheels vs 33s that they'd like to share? With stock setup I've noticed shifting at low speeds can get kind of clunky and I have 2600 miles on my JT already, so I'm guessing the tranny should have 'learned' my driving style by now. Thanks!

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[Under-Pressure]

I put 33” Rubicon takeoff’s on my Max tow & happy with the way it drives / performs. Nothing negative to report.

 

[S Kama Do!]

I did exactly what you're planning on, JLUR wheels and ko2s. Shifting at low speed had an occasional hiccup to it until I corrected the speedo with jscan. My mpg data is all over the map, so honestly it's hard to tell on the mpg drop, but my impression is that I lost roughly 0.5 mpg combined. I felt like the truck was downright fast with the sport 31.5 inchers, now it drives like a typical truck. If Detroit Truetracs ever come out for this thing, I'm going 4.56 gears lol.

 

[GladiatoRic]

My max tow rides great on rubicon 33’s ATs and agree no noticeable mpg change however I also didn’t see a big difference when running 35” MTs

 

[Brahmajoe]

I did exactly what you're planning on, JLUR wheels and ko2s. Shifting at low speed had an occasional hiccup to it until I corrected the speedo with jscan. My mpg data is all over the map, so honestly it's hard to tell on the mpg drop, but my impression is that I lost roughly 0.5 mpg combined. I felt like the truck was downright fast with the sport 31.5 inchers, now it drives like a typical truck. If Detroit Truetracs ever come out for this thing, I'm going 4.56 gears lol.

What size did you set in j scan for the new tires?

 

[cb4017]

I put 33" Rubi take-offs on my Sport Max Tow. I'm satisfied by how it drives. I did use J-Scan to set up the computer for the slightly taller tires.
If I'm not hauling my camp trailer I get close to 20 mpg.

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