speedo calibratrion (4.10 gears)?

[laser2kgt]

i have a month or so with my new 4.10s and i have yet to recalibrate my speedo. i figure its ten mph over the actual speed.

 

[trailblazr81]

Its not just a set number like 10 or 20 MPH. Its a percentage, so could be 5 MPH at 25 and 10 MPH off at 50. When I drove my car I was following family and they said they never went over 70 while I was pushing close to 90 a time or 2. I used Diablosport Predator to reprogram when I got home.

I got used to calculating my speeds from years of different 4x4's with big mud tires.

 

[sgarlic]

Ok.. so what is your question?

If you're asking HOW to calibrate it, do a search and you'll find tons of threads covering this.

 

[laser2kgt]

no i know how to recalibrate it, im just asking if anyone left it alone and never fixed it like me. i figure later on when i get some money ill buy me a programmer.

 

[sgarlic]

Oh.. well besides the fact that you're putting like 10% more miles on the car all the time, doesn't not knowing your exact speed bug you?

 

[98blackmagic]

if your car is a automatic it can cause trans problems if you continue to drive it with the speed-o not correct.

 

[laser2kgt]

if your car is a automatic it can cause trans problems if you continue to drive it with the speed-o not correct.