Jeep Wrangler Forum - Reply to Topic
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > JK Jeep Wrangler Forum > JK General Discussion Forum > 4.10 hardware with 3.73 software...

Join Wrangler Forum Today


Thread: 4.10 hardware with 3.73 software... Reply to Thread
Title:
  
Message:
Post Icons
You may choose an icon for your message from the following list:
 

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.



Additional Options
Miscellaneous Options

Topic Review (Newest First)
06-25-2013 11:18 PM
Tweak
Quote:
Originally Posted by THW View Post
Really?
yup! It had 33's on it, think they may have included it for that reason.
06-25-2013 11:08 PM
THW
Quote:
Originally Posted by Tweak View Post
for some reason my jeep came brand new off the dealership floor with a hypertech programmer just chilling in the glove box.
Really?
06-25-2013 10:55 PM
Tweak
Quote:
Originally Posted by THW View Post
How did you find out it was programmed for 3.21s?
for some reason my jeep came brand new off the dealership floor with a hypertech programmer just chilling in the glove box. I thought it had 3.21's so I left the gearing page at "STOCK" when I got bigger tires and upped the tire size in the system. one day I got bored and requested my build sheet, turns out I had 3.73's. it had no towing package or anything. guess I got lucky.
06-25-2013 10:53 PM
Tweak
Quote:
Originally Posted by WonderJeep View Post
In your case, did it shift earlier or later? A lot of gear hunting?
shifted later. in order to down shift coming up a hill I had to mash it pretty good.
06-25-2013 10:50 PM
THW
Quote:
Originally Posted by Tweak View Post
My jeep came with 3.73s and programmed for 3.21s. Shift points were the big deal, drove 10 times better after I reprogrammed. Speedo and mpg gauge were off. I was getting 21mpg on 37s LOL
How did you find out it was programmed for 3.21s?
06-25-2013 10:24 PM
WonderJeep
Quote:
Originally Posted by Tweak View Post
My jeep came with 3.73s and programmed for 3.21s. Shift points were the big deal, drove 10 times better after I reprogrammed. Speedo and mpg gauge were off. I was getting 21mpg on 37s LOL

In your case, did it shift earlier or later? A lot of gear hunting?
06-25-2013 09:54 PM
Tweak My jeep came with 3.73s and programmed for 3.21s. Shift points were the big deal, drove 10 times better after I reprogrammed. Speedo and mpg gauge were off. I was getting 21mpg on 37s LOL
06-25-2013 09:51 PM
jrussblues It will change the shift points slightly and throw off the speedometer and odometer slightly
06-25-2013 08:45 PM
WonderJeep LOL... i wouldnt be surprised if it could explode...

You think it would shift sooner or later? Where are the tranny experts?
06-25-2013 08:35 PM
tab22092
Quote:
Originally Posted by WonderJeep View Post
Just wondering.... what if you had a 4.10 rear end but 3.73 software was accidentally loaded, how would the tranny react?

Anyone ever experience this or have any idea of what it would feel like?
Kaboom! You need to change that now! Just kidding i have no idea lmao. In guessing itll just change your shift points a little.
06-25-2013 08:27 PM
WonderJeep
4.10 hardware with 3.73 software...

Just wondering.... what if you had a 4.10 rear end but 3.73 software was accidentally loaded, how would the tranny react?

Anyone ever experience this or have any idea of what it would feel like?

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


All times are GMT -5. The time now is 01:12 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