Who has a JK on 37’s?

[mtn_matt]

Currently have 35” BFG KO2 on my JK with a 4.88 gear ratio... I want to go up to 37s on my next set of tires... who has 37”, what gear ratio you running, and how do you like it? what’s your MPG?

 

[That_Escaladed_Quickly]

I am on 37’s and 3.42 gears. My fuel economy is horrible- somewhere in the 7-8mpg range.

 

[Clrussell]

Watching. Gal has a rubi on 35 and 3.73s.. averages 13ish.

Going to 37s next round and 4:88s, hopefully gears before the new tires. It’s kinda a pooch to drive around, unless you want to drive it in the upper rpms.

 

[BruteFinesse]

Mine is a JK on 37s with a truck bed. 5.13 gears

 

[mtn_matt]

I am on 37’s and 3.42 gears. My fuel economy is horrible- somewhere in the 7-8mpg range.

Yikes pal, get the regear!

 

[mtn_matt]

Mine is a JK on 37s with a truck bed. 5.13 gearsView attachment 191992

Such a sick truck!!

 

[surfnturf]

My old JK with AEV 3.5" lift with 4.5" bumpstops, 37's with 5:13's. Excellent combination... great drivability, fuel economy and off road clearance and traction.

 

[Adidas4275]

2010, 3.8L, 4 speed on 37s w/ 5.13s & the rubicrawler

Offroad it is great. On road it is fine. Could use more power at highway speeds on hill climbs & such but the 3.6+5 speed solves that

12-15 MPG city vs highway & depending on how fast highway.

At 70-76 we get around 14 mpg... worse the faster we go

Wouldn’t go back to 35s though for wheeling. 37s on the long wheel base is really the minimum.