2022 Refresh Trail Boss use GPS signal to calibrate Speedo?

[Trailboss22]

Just slap on a supercharger! I doubt you will have any issues with 34s and a 5.3.

Hey Anuswax! I went with those 34s and it still accelerates plenty good but it would just look better with 35s!

I remembered you had a refresh truck. Does yours still shift fine and all that with the 35s?
Folks are telling me with 35s the Speedo becomes about 5 mph off and makes the trans shift funky. Has that been the case for you?

 

[Trailboss22]

Yes, I have a ‘23 and the speedo has been off ever since I added bigger tires.

Does your trans shift normal and all that?

The Speedo will be like 5mph off and reading on here some folks are saying the shift points are messed up with the 35s.

Have you experienced that? I’m thinking of buying 35s and selling my 34s

 

[anuswax]

Hey Anuswax! I went with those 34s and it still accelerates plenty good but it would just look better with 35s!

I remembered you had a refresh truck. Does yours still shift fine and all that with the 35s?
Folks are telling me with 35s the Speedo becomes about 5 mph off and makes the trans shift funky. Has that been the case for you?

I’m sure you’ll enjoy the 34s, not much smaller than 35s anyway. I haven’t noticed any shifting issues at all, but the speedo is off more the faster you go. I just use Waze to show the actual speed if I care to know but it’s pretty easy to determine your speed.