Wheel & tire size question

[BTR69]

Originally Posted by Hacksaw

You might want to research / check with dealer before you buy taller rubber. Besides changing final gear ratio, I think tire size is tied into the computer and you could create a real dog unless someone can reprogram.

Thanks. I have somewhat considered gear ratio being affected. With 3:73 rear, I'm hoping it won't be affected too bad. May be best to consider adding 1-2 inches total tire height, instead of filling up the wheel well completely.
I'm not up to speed on what it takes to have a newer vehicle's speedometer calibrated/adjusted. Prior to this truck, newest vehicle I've had is 1998. I'm sure it's not difficult, but not cheap either...

[GTX JOHN]

My 2018 Ram 2500 4x4 Off Road package has 275/60/18
and they look pretty nice!