any info on poly lift kits? - Page 2 -
LinkBack Thread Tools
post #16 of 17 Old 12-17-2011, 12:54 PM
Keep on Jeepin on........
JeepN4KC's Avatar
Join Date: Jul 2011
Location: Blue Springs
Posts: 7,462
Originally Posted by 07wkman View Post
ok thanks. this is probably another dumb ? but with the lift and bigger tires do you have to do any electronic re- calibration for any sensors or anything.
My research could be wrong or incomplete, if so can someone chime in. I found in order to recalibrate my speedo and the like after going from 245 stock tires to 265's my options are taking it to the dealer or buying a programmer. I have wanted (and have ordered a Christmas gift to myself) a Superchips Flashpaq 3875. Hopefully, I'll soon be able to resolve the speedo and whatnot issue with it. I have been on tire calculator sites like Mattydipps mentioned and found that I am actually running about 6.5-7% faster than speedo reflects.
Click here for quick claculator:


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Sept '13/Jan '15/Jun '16 COTM
JeepN4KC is offline  
Sponsored Links
post #17 of 17 Old 12-17-2011, 02:28 PM
Registered User
2005 WK 
Join Date: Jul 2011
Location: Whitewater
Posts: 512
It means if you drive for one hour 66 miles, the odometer will only read 60. The average driver puts on between 12-15k a year, so each year you drive your truck actually has 1200-1500 more miles on it than it says. Sounds like a lot, but in the long run is that 6k miles difference in 4 years of driving going to matter that much in resale and/or maintenance costs? Not really..

Also my 10% is using a GPS to compare true speed to the speedometer, the tire calculators are theoretical as every tire varies by make and model.

To the OP, with the 3.7L you can't buy the same tuners that a lot of people around here use. Hypertech makes a tuner for 06 or 07+ 3.7L's but I don't think it calibrates for tire size, they have a separate calibrator for that (around $160-200). I've heard dealers can't adjust for tire sizes that aren't factory offered, but not sure if it's true everywhere.

-Sold 3/13. Replaced by 2010 VW Jetta 2.5-
2005 WK 3.7L Laredo. RC 2", 265 70 17 Bridgestone Dueler Revo 2's. Class III OEM hitch added. Bilstein Struts. Monroe Load Levelers (58643).
Blue WK Club Member #32
t3kmitch is offline  

Quick Reply

Register Now

In order to be able to post messages on the forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.

Email Address:


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.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page

Similar Threads
Thread Thread Starter Jeep Forums Replies Last Post
Total poly kits andrayder ZJ Grand Cherokee Forum 2 03-13-2011 04:31 PM
2" non poly lift suggestions and alignment rcracer WK Grand Cherokee & XK Commander Forum 3 11-20-2009 10:54 AM
2inch poly spacers ontop of 4inch lift? JkTheItalianoWJ ZJ Grand Cherokee Forum 6 08-07-2009 10:49 AM
2" poly spacer lift joewardrip ZJ Grand Cherokee Forum 5 07-24-2009 03:42 PM
2" poly lift kit? garyh58 ZJ Grand Cherokee Forum 6 10-23-2006 12:43 PM

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 On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome