Speedometer correction

Can someone point me in the direction of a thread that offers speedo correction methods.

TIA

 

Are you looking for products that will do that?

 

Dakota Digital

 

Yes

 

I have the hyper tech speedometer calibrator. Rough country also makes one that I am told is the exact same product, just rebranded. I’m not sure if they cover 1st gen’s though.

 

Have not tried this, but this product was in a similar post.

https://www.lutzauto.com/product-page/hilux-1st-gen-tacoma-speedometer-calibrator-correction-device

 

If you want to do it the old fashioned way: https://adventuretaco.com/replacing-the-speedo-gear/

 

Interesting, 255/85/16 w/4.10 gears ~0% off. It's when he went to 4.88 gears ~14% off factory.

I appreciate the link. Maybe just live with the error like I have with my 4runner.

 

I'm surprised nobody has made an open source version for us yet. It's simply a frequency counter and generator with debounce logic. Can be done with the simplest/cheapest of microcontrollers