So I just had new 35x11.5 R20 Toyo AT3s put on my 2019 2500 Big Horn from the stock 33" Firestones and to my surprise the speedometer was dead on at speeds up to 80mph when checked against 3 different independent gps speedos. I checked and the tire shop did not recalibrate anything. I don't have built in navigation but do plug in my phone and use Android Auto displayed on the screen and use that navigation. Is there a chance the truck automatically recalibrated the speedometer for the larger tires? I was researching tuners and had actually ordered a Hypertech device yesterday thinking the speedometer would be off 4-5mph but was very surprised when I checked it out and saw it was already dead on. Just curious if anyone has some insight.
On a side note I really like the AT3s and the 35x11s fit great with no rubbing what so ever.
Thanks
On a side note I really like the AT3s and the 35x11s fit great with no rubbing what so ever.
Thanks