Which diff? - Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > JK Jeep Wrangler Forum > JK General Discussion Forum

Join Wrangler Forum Today

Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 03-10-2008, 10:48 PM   #1
Join Date: Mar 2008
Posts: 34
Which diff?

Which diff should I get on my 2008? 3.21 or 3.73? What is the difference in gas mileage?

TJsmith is offline   Quote
Old 03-11-2008, 06:12 AM   #2
Walkeraviator's Avatar
Join Date: Jul 2007
Posts: 1,084
if you ever decide to go larger on tires you will be glad you got the 3.73. And if you go big enough, even that wont be enough gear...

Walkeraviator is offline   Quote
Old 03-11-2008, 01:11 PM   #3
Seryoga's Avatar
Join Date: Aug 2007
Location: Philadelphia
Posts: 158
Send a message via Skype™ to Seryoga
Originally Posted by TJsmith View Post
Which diff should I get on my 2008? 3.21 or 3.73? What is the difference in gas mileage?
That depends on what you going to do with your Jeep.

If you plan to use it as "Mall Crawler" then get 3.21, you'll get better MPG.

If you plan on modding it and taking it off-road then go with 4.10 it will eat a bit more gas, but when you are climbing a hill or stuck, you will be glad that you got 4.10
Seryoga 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
D30 ARB Diff Cover - Oil Level ? nicolas-eric TJ Tech Forum 5 04-18-2008 06:13 PM
quick diff question Sb5551 TJ Tech Forum 2 04-03-2008 11:13 PM
Leaking Front Diff? DocG2828 TJ Tech Forum 1 06-19-2007 01:39 PM
Dirty Rear Diff? 1995 4.0 DaveC YJ Tech Forum 7 04-28-2007 01:56 AM
clunking from rear diff??? natedigity TJ Tech Forum 5 09-09-2005 01:12 PM

Download our Mobile App

» Featured Product

All times are GMT -5. The time now is 11:52 PM.

User Alert System provided by Advanced User Tagging v3.1.0 (Pro) - vBulletin Mods & Addons Copyright © 2015 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