how do i tell my truck i changed tire size?

[gdawg55]

Yes it will. I used one on my 2015, worked perfectly. Just plugs into OBII port
Took maybe 10-15 minutes driving, key on, key off, etc

Cool....thanks.

 

[Midnight Storm]

Op,
Do you have the before and after tire sizes? That will tell me exactly how far it would be out, if at all.
another fun way to calibrate tire size for you with a ‘17 is an edge pulsar. It will give you some power or economy upgrades as well. A little more pricy than some of the options listed above but it’s good stuff.

 

[jcarli00]

2017 express. came with 17's, have 20's to put on. do i need to tell the truck? how?

This will tell you what your speedometer will read at 30mph and 60mph with your new wheels
https://www.willtheyfit.com/

 

[jcarli00]

2017 express. came with 17's, have 20's to put on. do i need to tell the truck? how?

Here's another place to check what your new speed would be...
https://www.tacomaworld.com/tirecalc

 

[srtdrew]

Use something like https://tiresize.com/calculator/ to figure out if you need to do anything at all in the first place based on entering both tire/wheel sizes.

 

[db208]

i got alpha obd, ($50 alpha obd program), ($60 mx+ obd connector on amazon) connected through my android phone via bluetooth. changed tire size to 35's and it fixed my speedo which was off by 3mph after installing bigger tires. also able to tweak many other settings with this gadget.

 

[Blue Truck]

Use something like https://tiresize.com/calculator/ to figure out if you need to do anything at all in the first place based on entering both tire/wheel sizes.

Love that site! I'll add some description on how to use it for your situation. On the left side, click on the "Tire Comparison" tab next to the "Tire Calculator" tab. This allows you to compare existing tire specs to potential ones, complete with diameter, revs per mile, percentages, etc.

 

[tdp1]

What about the odometer? Do bigger tires affect the miles racked up on it making the truck resale worse?

 

[boblonben]

Just tell it like u would tell your friend... "Dude, I put bigger wheels on you". In all seriousness, I don't think you can on the newer Rams. If there's a way, I don't know it. But as far as I know, just try to compensate a little on the speedo

Sent from my SM-N975U1 using Tapatalk

Is the tire diameter the same ?? If it is you do not need to do anything. Otherwise find someone with a programmer that fits into the OBDII port and you can tell the truck computer what new tire size you have. Easy....

 

[tidefan1967]

What about the odometer? Do bigger tires affect the miles racked up on it making the truck resale worse?

No on all counts. Taller tires turn fewer revolutions per mile traveled so if you didn't correct the speedometer you would actually have less miles not more. That being said when I did it I bought a used Hypertech Speedometer Recalibrator off of eBay for less than $100 to correct mine three years ago.

 

[slacadjuster]

Just tell it like u would tell your friend... "Dude, I put bigger wheels on you". In all seriousness, I don't think you can on the newer Rams. If there's a way, I don't know it. But as far as I know, just try to compensate a little on the speedo

Sent from my SM-N975U1 using Tapatalk

*****..."Dude, I put bigger wheels on you".