Speedo gear swap

speedo gear

Tonight I swapped out my Wranglers speedometer gear since the original stock one thats installed wasn’t working properly with my 33inch tires. My speedometer was off by around 10-20km/h and it was also effecting the transmission shift points. Installing the new speedo gear was pretty easy but it felt very claustrophobic under the Jeep. Now I need to figure out how to test the accuracy of my speedometer…


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16 comments, add your own...


  1. myk says:

    Drive by a camera on the highway doing 140KMH. Wait for the ticket, and voila :)

  2. Mark says:

    lol yeah yeah already thought of something like that.

  3. T-Num says:

    Let Nat drive the Z4 at a specific speed and you try to drive at the same on the same road. That way you will know!

  4. BoBader says:

    Use a GPS if you have one. Few years ago I used my GPS and found that my car speedometer was 10 km/h higher than my actual speed. When I asked alghanim they said they did that intensionally so people are always below speed limit!!!!!! Stupid idea.

    By the way, I used a chip programmer to collaborate speedometer and shifting point on few cars in the past. How come you had to replace hardware part?!

  5. Mark says:

    seriously? Companies in Kuwait come up with the strangest things..

    My Wrangler uses “a highly sophisticated scientific system which is very complex with which to calculate the speed: A little plastic gear on a stick”

  6. RaZ says:

    There is a simple equation speed = distance / time

    the motor way has distance markers almost every 100m, next time use another highly sophisticated device called a stop watch and viola……

    ps: go when there is least traffic so you can maintain a constant speed.

  7. Adrenaline says:

    Is that your hand in the photo… cause apart from the nails it looks very feminine and clean

  8. wbkzp says:

    Simply use a GPS

  9. Mark says:

    dude if thats what you think a feminine hand looks like then i’d be afraid to see the kind of woman you date lol

  10. dj_will says:

    take it to a dyno track … could be useful !!

  11. Mark says:

    there is a place on the fahaheel expressway that gives you your speed when u pass it maybe i could go there

  12. Adrenaline says:

    Mark:

    Nothing wrong with having feminine hands, females finds it hot and very attractive..i used to have them but i lost that feature in motorcycle accidents

  13. Baroni says:

    One solution I once used is have someone sit with me with a watch that has a tachymeter and count the time between milestones on the road. You need to measure the Big (green or blue?) ones (1Kilo) the small ones are 100 meters apart. The Tachymeter then will point to your speed.
    Little complicated but good as a poor man’s solution.
    No GPS needed and as accurate as your watch and your timer-person. :)

  14. Kuwait says:

    The speed display on Fahaheel expressway (under the Sabah Al Salem bridge, going North) doesn’t work. It shows 190Kmph standard for all cars, no matter what speed they’re going.


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