Enlighten me! regear.. - Jeep Wrangler Forum
Jeep Wrangler Forum

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

Join Wrangler Forum Today


Reply
 
Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 02-27-2012, 01:59 PM   #1
Jeeper
 
bobowrangler's Avatar
 
Join Date: Aug 2011
Location: SoCal
Posts: 118
Enlighten me! regear..

I sent an email to the jeep customer assistance center and got every bit of detail about my jeep. (just making sure )

So for me 2012 sahara, i have the 5 spd auto tranny with 3.21 rear axle ratio. According to this chart, if i put on 35s (which i'm planning to do), the rpm will be horrendous. here are the questions

1) regear yes no? (i think this would be a yes)
2) what ratio? (4.88 or 5,10 or something else?)
3) what brand? (ive been looking at yukon and superior)
4) On the superior site, the ring n pinion products come in many ratios: 4.56, 4.88, 5.13 etc, and they are listed for rear, front n reverse. Which one is the one i need??
Attached Thumbnails
Click image for larger version

Name:	2012 JK Gear Ratio Chart.jpg
Views:	44
Size:	108.1 KB
ID:	100384  

bobowrangler is offline   Quote Quick Reply
Old 02-27-2012, 03:00 PM   #2
Supporting Member Commercial Member

WF Supporting Member
 
Daniel_M's Avatar
 
Join Date: Nov 2011
Location: Arizoner
Posts: 2,406
1. Yes
2. I hear 4.10 is good on the '12 manual w/ 35's. So an auto maybe 4.88? I personally would go 5.13 on the auto 2012 or not.
3. Yukon and Superior are both great. If one is cheaper, go that route.
4. I believe on a JK Sahara front is D30 reverse and the rear is D44 Non Rubicon.

You'll need install kits master or basic and suggest an AEV Procal.

-Dan

__________________
-Dan, Owner
RockRaider4x4 - PM me for a quote
Free shipping on most items
Suspension package deals available
Daniel_M is offline   Quote Quick Reply
Old 02-27-2012, 03:04 PM   #3
Jeeper

WF Supporting Member
 
kbwwolf's Avatar
 
Join Date: Sep 2011
Location: Wisconsin
Posts: 12,179
Quote:
Originally Posted by bobowrangler View Post
I sent an email to the jeep customer assistance center and got every bit of detail about my jeep. (just making sure )

So for me 2012 sahara, i have the 5 spd auto tranny with 3.21 rear axle ratio. According to this chart, if i put on 35s (which i'm planning to do), the rpm will be horrendous. here are the questions

1) regear yes no? (i think this would be a yes)
2) what ratio? (4.88 or 5,10 or something else?)
3) what brand? (ive been looking at yukon and superior)
4) On the superior site, the ring n pinion products come in many ratios: 4.56, 4.88, 5.13 etc, and they are listed for rear, front n reverse. Which one is the one i need??
If only it were so simple.

Want 35s dont want to REGEAR ??
__________________


"What we see depends mainly on what we look for."
—John Lubbock
kbwwolf is offline   Quote Quick Reply
Old 02-27-2012, 03:04 PM   #4
Jeeper
 
bobowrangler's Avatar
 
Join Date: Aug 2011
Location: SoCal
Posts: 118
Quote:
Originally Posted by Daniel_M View Post
1. Yes
2. I hear 4.10 is good on the '12 manual w/ 35's. So an auto maybe 4.88? I personally would go 5.13 on the auto 2012 or not.
3. Yukon and Superior are both great. If one is cheaper, go that route.
4. I believe on a JK Sahara front is D30 reverse and the rear is D44 Non Rubicon.

You'll need install kits master or basic and suggest an AEV Procal.

-Dan
I thought it's only the rear axle ratio that needs to be changed. So i need to change up front and rear right?
bobowrangler is offline   Quote Quick Reply
Old 02-27-2012, 03:19 PM   #5
Jeeper

WF Supporting Member
 
kbwwolf's Avatar
 
Join Date: Sep 2011
Location: Wisconsin
Posts: 12,179
Quote:
Originally Posted by bobowrangler View Post
I thought it's only the rear axle ratio that needs to be changed. So i need to change up front and rear right?
Yes.
__________________


"What we see depends mainly on what we look for."
—John Lubbock
kbwwolf is offline   Quote Quick Reply
Old 02-27-2012, 03:23 PM   #6
Supporting Member Commercial Member

WF Supporting Member
 
Daniel_M's Avatar
 
Join Date: Nov 2011
Location: Arizoner
Posts: 2,406
Quote:
Originally Posted by bobowrangler View Post
I thought it's only the rear axle ratio that needs to be changed. So i need to change up front and rear right?
You need both. Should be looking at around $600 for gears and (master) install kits for both axles and another $149 for a Procal. Then paying labor for your 4x4 shop to do it.

Oh BTW if you need gears PM Jason from Krawl, I just ordered some 5.13's from him.

-Dan
__________________
-Dan, Owner
RockRaider4x4 - PM me for a quote
Free shipping on most items
Suspension package deals available
Daniel_M is offline   Quote Quick Reply
Old 02-27-2012, 03:27 PM   #7
Jeeper
 
bobowrangler's Avatar
 
Join Date: Aug 2011
Location: SoCal
Posts: 118
Quote:
Originally Posted by kbwwolf View Post
If only it were so simple.

Want 35s dont want to REGEAR ??
Hey wolf i read every post in that thread and there is still one question i don't quite understand. how do u get better mpg when u r at higher rpm??? please be patient with me
bobowrangler is offline   Quote Quick Reply
Old 02-27-2012, 03:37 PM   #8
ESP
Jeeper
 
ESP's Avatar
 
Join Date: Jun 2010
Location: NC
Posts: 11,513
Quote:
Originally Posted by bobowrangler View Post
Hey wolf i read every post in that thread and there is still one question i don't quite understand. how do u get better mpg when u r at higher rpm??? please be patient with me
The RPMs run higher to deliver more power for each gear but the big thing is that the new gears move the larger diameter wheels/tires easier without pulling on the engine like the stock gears do = improved ECO over doing 35s with stock gears.
ESP is offline   Quote Quick Reply
Old 02-27-2012, 03:45 PM   #9
Jeeper
 
bobowrangler's Avatar
 
Join Date: Aug 2011
Location: SoCal
Posts: 118
Quote:
Originally Posted by ESP View Post
The RPMs run higher to deliver more power for each gear but the big thing is that the new gears move the larger diameter wheels/tires easier without pulling on the engine like the stock gears do = improved ECO over doing 35s with stock gears.
ok it all makes sense now thanks!
bobowrangler is offline   Quote Quick Reply
Old 02-27-2012, 03:50 PM   #10
ESP
Jeeper
 
ESP's Avatar
 
Join Date: Jun 2010
Location: NC
Posts: 11,513
Quote:
Originally Posted by bobowrangler View Post
ok it all makes sense now thanks!
The thing I should add too is that running 35s with proper gearing will NOT make your MPG better than running stock everything i.e. tires, gears, no lift, etc. Proper re-gearing simply keeps the power in check so that it is usable with bigger tires. Most with 35s and 4.88s and a manual pre 3.6 can expect to stay within 14-17 while those with the 3.6 and proper gearing could feasibly expect more.
ESP is offline   Quote Quick Reply
Old 02-27-2012, 03:52 PM   #11
Jeeper
 
ntlwndrsrlost's Avatar
 
Join Date: Feb 2012
Location: Fort Sam Houston
Posts: 20
!
ntlwndrsrlost is offline   Quote Quick Reply
Old 02-27-2012, 03:56 PM   #12
Jeeper
 
bobowrangler's Avatar
 
Join Date: Aug 2011
Location: SoCal
Posts: 118
Quote:
Originally Posted by ESP View Post
The thing I should add too is that running 35s with proper gearing will NOT make your MPG better than running stock everything i.e. tires, gears, no lift, etc. Proper re-gearing simply keeps the power in check so that it is usable with bigger tires. Most with 35s and 4.88s and a manual pre 3.6 can expect to stay within 14-17 while those with the 3.6 and proper gearing could feasibly expect more.
So in other words regearing just bring the mpg back to what it is suppose to be when everything was stock.

originally i thought it would turn my rig into a gas saving prius.
bobowrangler is offline   Quote Quick Reply
Old 02-27-2012, 03:58 PM   #13
MTH
Jeeper
 
MTH's Avatar
 
Join Date: Oct 2010
Location: North Carolina
Posts: 8,553
Quote:
Originally Posted by bobowrangler View Post
So in other words regearing just bring the mpg back to what it is suppose to be when everything was stock.
I don't believe that's quite right. My understanding is a regear can make the loss of mpgs from bigger tires less terrible, but I don't think it'll actually be a zero change from stock.
__________________
Mike
2010 JKU "Mountain" Edition
TeraFlex 2.5" Coil Lift : Old Man Emu Nitrocharger Shocks : 33x12.5R15 Goodyear DuraTracs : 15x8 Black Rock 909s : Other Stuff . . .
MTH is offline   Quote Quick Reply
Old 02-27-2012, 03:59 PM   #14
ESP
Jeeper
 
ESP's Avatar
 
Join Date: Jun 2010
Location: NC
Posts: 11,513
Quote:
Originally Posted by bobowrangler View Post
So in other words regearing just bring the mpg back to what it is suppose to be when everything was stock.

originally i thought it would turn my rig into a gas saving prius.
Bring back to stock, no. Recoup some of the loss from moving to bigger tires, yes.
ESP is offline   Quote Quick Reply
Old 02-27-2012, 04:03 PM   #15
Jeeper
 
bobowrangler's Avatar
 
Join Date: Aug 2011
Location: SoCal
Posts: 118
Quote:
Originally Posted by ESP View Post
Bring back to stock, no. Recoup some of the loss from moving to bigger tires, yes.
Got it!

bobowrangler is offline   Quote Quick Reply
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Jeep Wrangler Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools

Posting Rules
You may post new threads
You may 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
my jeep gets me dates greenjeepgurl87 Off-Topic 112588 Today 09:32 PM
Some thread titles make me giggle... Or "what I'd really like to post but can't". :D ccain Off-Topic 707 05-30-2013 12:03 PM
help me find this Rommelx3 Communications and Electronics 3 03-01-2012 03:04 AM
2012 JKU Arctic or Ruby? Help me decide! ChasmCrawler JK General Discussion Forum 14 02-28-2012 12:20 AM
my dog disowned me c0d3x5 General Jeep Discussion 30 02-26-2012 10:25 PM



Download our Mobile App

» Network Links
»Jeep Parts
» Featured Product

All times are GMT -5. The time now is 11:14 PM.



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