speedometer gears - Jeep Wrangler Forum
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > TJ Jeep Wrangler Forum > TJ 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 08-15-2012, 08:07 PM   #1
Jeeper
 
Join Date: Nov 2011
Posts: 136
speedometer gears

I replaced my speedometer gear today to account for new tires...the gear I pulled out was a 30 tooth gear. None of the charts I show indicate 30 tooth gears...

The jeep had 32" tires when I bought it, no idea if the speedometer gear was replaced by the p.o or not, so is 30 teeth stock or if not what is it?

I'm curious because I wondered if the speedo was accurate before or not

c_goodnow is offline   Quote Quick Reply
Old 08-16-2012, 05:22 AM   #2
Jeeper
 
Join Date: Aug 2012
Posts: 34
30 tooth is usually stock gear if your jeep was born with 3.07 gears and the 28/29in stock tire packages. Your speedometer would have been reading low on bigger meats. for 32's you probably need a 27tooth assuming 3.07s. Keep in mind most tires measure smaller than their nominal diameter (i.e. many 31's are really closer to 30in) - some of the charts I have run into on the 'webs are based off nominal diameter, you may have to to up one tooth depending on your tire package.

dontpanic is offline   Quote Quick Reply
Old 08-20-2012, 12:18 PM   #3
Jeeper
 
lifted tj's Avatar
 
Join Date: Aug 2012
Posts: 108
Quote:
Originally Posted by c_goodnow
I replaced my speedometer gear today to account for new tires...the gear I pulled out was a 30 tooth gear. None of the charts I show indicate 30 tooth gears...

The jeep had 32" tires when I bought it, no idea if the speedometer gear was replaced by the p.o or not, so is 30 teeth stock or if not what is it?

I'm curious because I wondered if the speedo was accurate before or not
What gears do you have? I'm looking for one for my TJ with 3.73 gears and 33s
lifted tj is offline   Quote Quick Reply
Old 08-20-2012, 09:27 PM   #4
Jeeper
 
mickeygriffin's Avatar
 
Join Date: May 2012
Posts: 151
how do i find what gears i have?
__________________
iWave when iPass
97 TJ, 4cyl
mickeygriffin is offline   Quote Quick Reply
Old 08-21-2012, 08:55 PM   #5
Jeeper
 
lifted tj's Avatar
 
Join Date: Aug 2012
Posts: 108
Quote:
Originally Posted by mickeygriffin
how do i find what gears i have?
There is a tag on the axle cover if not I did this on my ZJ it's stamped on the gears them selfs but you have to change the fluids do you know your axle?
lifted tj is offline   Quote Quick Reply
Old 08-21-2012, 09:22 PM   #6
Jeeper
 
Join Date: Jul 2012
Posts: 69
Quote:
Originally Posted by lifted tj View Post
There is a tag on the axle cover if not I did this on my ZJ it's stamped on the gears them selfs but you have to change the fluids do you know your axle?
If a PO changed the gears would the tag get changed to reflect the new gears?
MySahara is offline   Quote Quick Reply
Old 08-21-2012, 09:42 PM   #7
Jeeper
 
jeepdude2003's Avatar
 
Join Date: Dec 2011
Posts: 230
After reading this thread made me go look for my stock speedo gear and its a 30 tooth i had 307 gears I6 5 speed X model 2003 235 tire i think where stock on it hope this helps answer your questions
jeepdude2003 is offline   Quote Quick Reply
Old 08-21-2012, 09:57 PM   #8
Jeeper
 
Join Date: Nov 2011
Posts: 136
My Jeep has 3.73 gears but still had the 30 tooth
c_goodnow is offline   Quote Quick Reply
Old 08-21-2012, 10:26 PM   #9
Newb
 
Join Date: Aug 2012
Posts: 6
it hope this helps answer your questions
sethbrawnl is offline   Quote Quick Reply
Old 08-22-2012, 06:29 AM   #10
Jeeper
 
mickeygriffin's Avatar
 
Join Date: May 2012
Posts: 151
Quote:
Originally Posted by lifted tj View Post
There is a tag on the axle cover if not I did this on my ZJ it's stamped on the gears them selfs but you have to change the fluids do you know your axle?
no but im certain its stock?
__________________
iWave when iPass
97 TJ, 4cyl
mickeygriffin is offline   Quote Quick Reply
Old 08-22-2012, 07:37 AM   #11
Jeeper
 
Neil F.'s Avatar
 
Join Date: Nov 2007
Location: Marlton, NJ
Posts: 4,908
Images: 1
Quote:
Originally Posted by MySahara View Post
If a PO changed the gears would the tag get changed to reflect the new gears?

No
__________________
2003 TJ, 33" BFG AT, 2" BL, 2" BDS spring lift, Truck Lite headlights, Homemade sunrider top.
Neil F. is offline   Quote Quick Reply
Old 08-22-2012, 08:20 PM   #12
Jeeper
 
lifted tj's Avatar
 
Join Date: Aug 2012
Posts: 108
Quote:
Originally Posted by mickeygriffin

no but im certain its stock?
You can do what I did call a dealer and give them your vin and they can look it up and see what it came with, but if there's no tag best thing to get a for sure answer pull off the cover and look at the gears the ratio is stamped on it, look up a pic of a Dana 30 and a Dana 44 your front is most likely to be a 30. But the rear my not be. But you can tell by the cover, look up my post in here there is a pic of all the diff covers from a guy that helped me with mine.
lifted tj is offline   Quote Quick Reply
Old 08-22-2012, 08:23 PM   #13
Jeeper
 
lifted tj's Avatar
 
Join Date: Aug 2012
Posts: 108
Quote:
Originally Posted by MySahara

If a PO changed the gears would the tag get changed to reflect the new gears?
No it would show the stock gears, what problems are you having? I may be able to help or point you to someone who could.

lifted tj 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:
If you do not want to register, fill this field only and the name will be used as user name for your post.
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



logo carid shop wrangler parts carid fender flares custom wheels store avs deflectors at carid
» Rates
Get low rates on auto insurance in Canada!

» Network Links
»Jeep Parts
» Featured Product

All times are GMT -5. The time now is 07:42 AM.



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