Calgary Jeep Association

« previous next »
Pages: [1]   Go Down

Author Topic: speedo is out 20km hr  (Read 918 times)

0 Members and 1 Guest are viewing this topic.

rolandjc

  • Guest
speedo is out 20km hr
« on: February 27, 2010, 03:16:41 PM »
hi guys please bare with me as i am new to owning a jeep and i may get some things wrong.
when i bought this J and brought it home i noticed that my speedo was out about 20km. so i think the gearing has been changed to be out this far. my question is on a jeep how can this be corrected. thanks for your help in advance
rolandjc
Logged

Offline apex

  • Talks waaay too much!
  • Posts: 1190
Re: speedo is out 20km hr
« Reply #1 on: February 27, 2010, 03:37:52 PM »
speedo gear is an easy swap. It's on the t-case and pretty straight forward.

Does it have larger than stock tires?
Logged

rolandjc

  • Guest
Re: speedo is out 20km hr
« Reply #2 on: February 27, 2010, 03:57:08 PM »
on the door it suppose to have 205's but it has 215s on it
Logged

Offline apex

  • Talks waaay too much!
  • Posts: 1190
Re: speedo is out 20km hr
« Reply #3 on: February 27, 2010, 04:50:18 PM »
Logged

Offline Tagg

  • Budget Lift
  • Posts: 175
Re: speedo is out 20km hr
« Reply #4 on: February 27, 2010, 09:56:13 PM »
depending on the year of the jeep an AEV Procal module can adjust it to dead on.
It took me a couple of tries but mine is now exactly on my gps reading
Logged
08 Rubicon

Offline Evil-Jeep

  • UberWheeler
  • Posts: 319
Re: speedo is out 20km hr
« Reply #5 on: March 04, 2010, 12:06:48 AM »
As a general rule of thumb for every 10% increase in tire size your speedo should read 10% slower..... for every 10% increase in gear ratio your speedo should read 10% faster. it is however a rather inexpensive and easy fix.
Logged
“I contend that we are both atheists. I just believe in one fewer god than you do. When you understand why you dismiss all the other possible gods, you will understand why I dismiss yours.”
Pages: [1]   Go Up
« previous next »