Gearing Help Please - Jeep Wrangler Forum
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > General Jeep Discussions > Builders Corner

Join Wrangler Forum Today


Reply
 
Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 11-01-2013, 11:41 AM   #1
Newb
 
Join Date: Nov 2013
Posts: 7
Gearing Help Please

So my lady has a 1997 Wrangler with the 4.0 6 cylinder,5 speed...it has 3.07 gears and 33's..it wont go over 60mph no matter how much you push the gas pedal down...any suggestions?

EChaney is offline   Quote
Old 11-01-2013, 11:42 AM   #2
Jeeper
 
JVLemur's Avatar
 
Join Date: Apr 2012
Location: California
Posts: 4,617
You'd probably be best with a 4.56 gear ratio

__________________
Don't follow the Hype, follow your Heart.
JVLemur is offline   Quote
Old 11-01-2013, 04:51 PM   #3
Jeeper
 
0III0forlife's Avatar
 
Join Date: Mar 2012
Location: Ridgway, Pa.
Posts: 3,919
Images: 6
stay out of 5th gear if you want it above 60. I had 3.07's and 33 for a few years and 5th was only used going down hill.

If you want to change gears, and don't plan on going over the height of 33" tires, then 4.10 ratio will do you ok and still have good gas mileage. If you want power and don't care about gas mileage then switch to 4.56's.

I currently run 33's in the winter with 4.56 gears, and I have tons of power, I can start out in 2nd gear in most places, but gas mileage is a joke. in the summer I run 35" tires and my mileage is a little better.
0III0forlife is offline   Quote
Old 11-01-2013, 08:05 PM   #4
Newb
 
Join Date: Nov 2013
Posts: 7
Someone suggested she has a plugged up cat...could that be it? i have the exact same combo but with 31's and i pull through to 80...hers its like it stops making power at 60,even though the gas pedal can still go way down.
EChaney is offline   Quote
Old 11-01-2013, 08:18 PM   #5
Jeeper
 
JVLemur's Avatar
 
Join Date: Apr 2012
Location: California
Posts: 4,617
Quote:
Originally Posted by EChaney View Post
Someone suggested she has a plugged up cat...could that be it? i have the exact same combo but with 31's and i pull through to 80...hers its like it stops making power at 60,even though the gas pedal can still go way down.
3.07 is too low a gearing(numerically) for 33s, as suggested keep it out of 5th unless on a flat road or downhill. Otherwise optimal gearing for the 4.0 with the 5speed manual is 4.56. Will do best on the highway and off-road
__________________
Don't follow the Hype, follow your Heart.
JVLemur is offline   Quote
Old 11-01-2013, 08:50 PM   #6
Newb
 
Join Date: Nov 2013
Posts: 7
ok...next question...where is the best place to get say 4.10 gears...and will anything from the Ford explorer/ranger/bronco II or grand cherokee interchange(gears)?

If i read things right,these(1997 Wrangler Sport's) have a Dana 30 up front and a Dana 35 in the rear?

EChaney is offline   Quote
Reply

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




Download our Mobile App

» Featured Product

All times are GMT -5. The time now is 10:23 AM.


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