How do you recalibrate the speedo with larger tires

I've been on here reading ever since I ordered my truck and I should be getting it next week. I already have my suspension and wheels and tires. I realized I never came across any post about speedometer changes with the larger tires. Has anyone noticed a difference with the larger tires and how do you recalibrate the speedometer?

 

what size tars? on second gens, the speedo reads a bit slow stock, so going from 265-70-16 to 265-75-16 brings it right in line where it should be

check out this tire size calculator, it might show you where you are going to end up

https://www.tacomaworld.com/tirecalc

 

Also, There is a shop I hickory that will check the authenticity of your speedo and calibrate it for a fee."Myautomaster.com" I believe.

 

I have 265/75/16 duratracs on my truck and at 70 mph my speedometer and the digital speed are off by 2mph.

 

I'm putting 275/70-18 on my gen 3. I didn't know if the dealer can make the change or if I had to go to a specialty shop.