MUD PLZ

I had 35's and 3.73 with auto, it was ok but the tranny was always kicking down a gear. I have 5:13's now and really makes a huge difference.

nangulator

You need some 5.13s.

beadbus

Hi aB2! Check out the link Performance mods or re-gear on the search bar. This posting has EVERYTHING you want to know about gears.
If you have an Automatic, the 513-538 seem to be the proper gearing.
If you have a 6-Speed, the 488's seem to be the proper gearing.

I have an Automatic and just went from 410 to 513 (With 32" tires) and I am planning to max. at 33", I LOVE how it stays in the
power range and my trans does NOT shift up and down, it just cruises. This is what you need to research and do it right the first time.

TRUST the postings as I found this info to be RIGHT ON TARGET, because when I called the Mail order house they told me not to go above 488 and they were WRONG for my application.

tony two clips

i guess it depends what you want out of your jeep. im running 373 with auto and 35s and i think its fine. i guess i wouldnt mind gearing but theres 100 things id do WAY before that. i didnt buy my jeep to win races anyways

mkjeep

I just wanted to be able to pass people who were driving slower on the interstate. Boppin aroun town was fine with 4.10's . Interstate sucked!

jggucwa

Running 3.73's is gonna be just fine around town. I commute 40 miles via interstate twice a week, and found the interstate performance to suffer a bit. Bear in mind that you are driving a brick, and it's interstate performance is questionable at best stock. I have not reset my shift points yet, but anticipate better performance when I do. Your speedometer will read 5mph slower than actual at highway speeds. Without your shift points re-calibrated your auto transmission will wander between 1900-2500 rpms. Slightly annoying, and it decreases your mpg, but it works. You can kick OD off and you will run higher RPM's but will be constant. I put my cruise on 70mph indicated (75mph actual) and rock out no problems. I have virtually no passing power at this speed, but I really didn't have much to begin with. You can kick the transmission into a lower gear, but don't expect much response. You will get a slow increase of speed (the thing will still go 90, but will take more time to get there).

Anyways...my opinion.

mkjeep

X2 exactly, you just explained it better, I write in cliff notes.

bigbluejk

low gear good. hi gears bad.

caveman notes. shorter than cliffnotes even.

mkjeep

LOL I need to get some time off so I can come on a ride up there.

misha

I am running 35" on 2 DR X 3.73 auto, 5.13 are in the boxes, waiting to be installed. For DD on up and down freeway and in the city it is ok, including passing on the uphill or going 75 in the fast lane. I never go over 75 in any vehicle anyway It feels like it would be sluggish if I load the Jeep fully but all in all I am not too unhappy.