speedo recalibration

[turbo lcc]

Is it possible to recalibrate the speedometer on our trucks? (for bigger tires)

 

[lschultz]

Last time they tryed it on my sons 99 it would only go as high as 265s. He had 315s on then and has since replace them with LT 295/75 16. They were limited in how big a tire they could go. But things could of changed by now.

 

[HOSS]

See my post in this forum titled Speedo way off! You will find what you need there. Right now the tread is on about page four

 

[JR2]

There are a couple of companies that make little black boxes to fix this problem. However I don't know if they just fix the speedo or if they fix the speedo and send the new #'s to the Anti-lock breaks...

 

[StakeMan]

I have the Superlift Tru-speed. It works well and has 2 different settings. I believe it corrects the signal between the ABS and the ECM. I do have 4 wheel ABS and it works well.

 

[milehiscott]

According to the stealer: If you are going to a size tire that is sold by Dodge, they can reset it for you. That will cost you about 1hr labor at a dealer. Anything else, you will have to get an aftermarket widget to correct it for you. That will cost you around $200. :{



This will help you calculate your adjustment:

tire size calculator