Anyone able to shed some light on how terrible it would be, and how miserable I will be if I get 35s and stay with my stock 3.21s for a little bit. (Few months).

 

I have a 2007 JKU 6 speed with 3.21 gears and 35” tires with a RE3.5 lift. It’s not too bad at all, but when I go up steep hills I do tend to have to rev it up a little. When I go out wheeling, I use 4 LOW almost all the time. My JK still does a great job out wheeling and not too bad at all on the paved road. I don’t do any highway driving so I don’t know how that would do.

I’m saving up money to install ARB air lockers in front and back along with 5.13 gears.

Over all I’m glad that I didn’t install new gears yet, until I get the money for my lockers.

 

See that's another thing I want to eventually do. So why do gears twice? I'm glad to heart his since I want 35s so bad. What kind of gas mileage do you get? And I use 4lo as it is when I wheel. Just easier on my clutch IMHO. With the 35s is it real hard in your clutch? Do you have to hang on the clutch a lot to get her rolling?

 

It's not too bad on the clutch, I do rev it up a little more than before I got the 35s, but just a little. I plan on going to 37s in a few years so that is why I'm going with 5.13 gears. I want to fully strengthen my D30/D44 before I get my lockers, so it will be about a year and a half before I regear and do that. The first thing for me was to get the lift and 35s, now I'm working on some of the cheaper mods, then armor, bumpers, wench. Then I will do the gears and lockers. I would wheel it too hard if I had the lockers now without all the armor ect, so I'm taking it one step at a time and doing the thing that I want most Last :( . Well nothing is ever last in a jeep, you always keep getting more....

Oh, on the gas mileage, I'm getting about 16 in town, I was getting around 18.

 

Are you driving a JK or JKU? I'm already getting 17 MPG. I am not tooooo worried about the mileage as lo as it's not 8 MPG with 3.21s. I can deal with a MPG or so drop for a while until I get gears.

 

Anyone else able to give some input on 35s with 3.21 gears in a JKU 6 speed?

 

You'll loose horse power... If you plan on changing out your gears I would not go bigger than 4.88 on your front D30. I would also gusset your front axle when you do go 35's if you do plan on wheeling.

 

Why is that

 

What are you asking sir?

 

Why is that