Tire Size Change Question

[Jackpine]

45 sounds pretty good to me, with 50 psi max. I think you're going to get better handling, less rolling resistance, less heat buildup, better tire wear, etc. etc., at that pressure.

- Jack

[rednoved]

When we have a custom tune made for us, is OUR tire size part of that tune? If it is, can we change it if I were to go to a different size tire? I plan on lifting the truck not too far down the road. Or even if I add a leveling kit in the next month, I'll probably buy larger tires.

[Jackpine]

Originally Posted by rednoved

When we have a custom tune made for us, is OUR tire size part of that tune? If it is, can we change it if I were to go to a different size tire? I plan on lifting the truck not too far down the road. Or even if I add a leveling kit in the next month, I'll probably buy larger tires.

Yes to both questions. You give Bill your tire size and he programs it into the tune. If you change tires later, you can revise the size using the Custom Options menu.

- Jack

[rednoved]

Originally Posted by JackandJanet

Yes to both questions. You give Bill your tire size and he programs it into the tune. If you change tires later, you can revise the size using the Custom Options menu.

- Jack

Thanks. So I wouldn't need to order another custom tune after the lift. That's good to hear!

[stryker6040]

Jack the number you gave me was almost dead on. just a little more fine tuning and everything should be as close to prefect as we can get thanks a lot for the help!

[Jackpine]

Originally Posted by stryker6040

Jack the number you gave me was almost dead on. just a little more fine tuning and everything should be as close to prefect as we can get thanks a lot for the help!

You're most welcome! Glad we could help you out.

- Jack

[Mexico Dan]

I just got my custom tunes, took it out for a 250 mile drive this weekend. I don't have a gps, but using the mile markers on the freeway, my odometer flips about 150 feet before each mile marker. I also feel "slow" driving the same roads I'm used to. Decrease tire size a little? I have 285/75/16 Terra Grapplers, max psi 65, and running them about 43. Is this too low?