5.13 Gears in an Auto JK Rubicon....Some observations - Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > JK Jeep Wrangler Forum > JK Tech Forum

Join Wrangler Forum Today

Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 06-14-2007, 09:41 PM   #1
Absolute Offroad's Avatar
Join Date: May 2006
Posts: 339
Absolute Offroad is on a distinguished road
5.13 Gears in an Auto JK Rubicon....Some observations

First off, let me tell you, this was the final chapter to modifying our JK. After the 5.5" RockKrawler Mid arm lift and 37" BFG Krawler's there was something missing. GEARS. Everyone is afraid of big gears because they are afraid that "they wont be able to drive down the freeway" I am here to tell you that all of the little irritating quirks that arose from putting 37" tires on a JK are NOW GONE. Gone....not being able to use Overdrive even on a dead flat freeway. GONE....Speedo that was WAY off and the transmission shifting quirks that came with that. Now with 5.13 gears from Superior Axle and gear, it will hold O/D on the freeway, and in O/D with the converter locked up, its at 2300 RPM @ 60 MPH. I really dont see the safety factor in driving a 5.5" lifted, 37 inch tired JK at anything ABOVE 75, so these are going to be perfect. I am going to put my 35" Mickey Thompson MTX's on tomorrow and see how the RPM is, but I bet it will still be well within reason!!! I will keep everyone updated on the MPG too. On a side note, since there is No speedo correction for the 07 JK's because of the fact that they read speed from the transmission output shaft speed sensor, the speedo reading with 37's is STILL 2 MPH SLOW. It will most likely be about the same 2 off with the 35's but I think it will be fast. BEST MOD YET!!!!!

Absolute Offroad
Absolute Offroad
ASE Master L1 Certified since '96
00 TJ, RockKrawler Pro 8 Coil-Over Stretch Kit (104") and some other "stuff"....
07 JK Rubicon 2 Door, RockKrawler 5.5" Long Arm "X" Factor lift kit, 5.13 Gears, AO Emissions canister skidplate, 1310 U-jointed driveshafts, 37" Mickey Thompson Baja Claw tires on Walker Evans beadlocks, ORF Front bumper, Olympic Rock sliders, Alloy USA front Cro-mo shafts
Absolute Offroad is offline   Quote

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
5.13 gears????? chiro2736 General Jeep Discussion 8 10-08-2008 08:58 PM
Old guy's first Jeep exmxr73 WF New Member Check In 12 08-16-2007 08:46 PM
Higher gears, better with auto or stick searlo TJ Tech Forum 16 04-29-2007 03:00 AM
2003 Rubicon with Auto Trans. NOLUCK13 TJ General Discussion Forum 5 03-22-2007 02:04 PM
JK Gears - Pre-Order Now! 4x4ROCKSHOP Classifieds Archive 0 01-05-2007 06:24 PM

Download our Mobile App

» Featured Product

All times are GMT -5. The time now is 02:16 AM.

User Alert System provided by Advanced User Tagging v3.1.0 (Pro) - vBulletin Mods & Addons Copyright © 2016 DragonByte Technologies Ltd.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2016 DragonByte Technologies Ltd.

Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC.
Wranglerforum.com is not in any way associated with the Chrysler Motors LLC
« Back

Enter your email address:

Delivered by FeedBurner