I have a 2011 Wrangler Sport 6 speed manual with 3.21's & 33' Goodyear MT/R's with Kevlar, 285/70/17. I have a set of 4.88's ready to get installed but might be selling them for 4.10 or 4.56. My issue is what it will take to go 4.88's, meaning bigger tires, higher lift, etc. I live in south Louisiana and don't have anywhere to rock crawl thats close by to just spend a weekend. I plan on a trip to Hot Spings Ark to do some rock crawling but don't plan on going crazy with my Jeep due to it being my DD. I will do a "c" gusset & a sleeve job on whatever I put in. I know we have alot of previous post on this site pertaining to this, but I want my own personal input from all you guys out there. I also wanna keep my fuel milleage as good as I can get, so I figure the 4.10's will do me just fine. Question is if I put 4.10's in, will I have full access to 6th gear? I have not been able to use it since I put the 33's on due to the 3.21's. I want to be able to roll at 75 mph if I want and just question if the 4.10's and 33's will do what I want. All responses will be highly appreciated guys! Thanks and HAPPY NEW YEAR!

 

I am running 35s and 3.73 gears on my '10. I have to be running 80+ MPH before 6th gear is really useable. However, I can set the cruise at 80 in 5th and get at least 18 MPG with plenty of power to climb hills.

 

What size engine do you have? I have the 3.8 ltr and can't use 6th at all.

 

The 4.10's with 33" tires will work good with your 6 speed. I would not use the 4.88's.

 

I also have the 3.8, but also have a Flashpaq.

 

The 4.56's will be good with 33's and will also work good if you decide later to go with 35's. 33's with 4.10 and 35's with 4.56 will only be about 150rpm difference.

 

I have 3.73 in my 2010 JKU with 33x12.50 and I use 6th all the time. No problem on the highway other than lack of mpg.