Slim357

Im trying to figure out what the biggest tire I can run on a 2500 6.7L Cummins diesel with out lifting or changing wheels. I use the truck to haul cars around but it looks so wimpy with 245/70/17s on it. Truck is bone stock but want an aggressive look to it.

wiggles

Have any buddies with like 33's or 35's? Pull up right next to their rig and see

Slim357

Ya but the have 15" wheels

wiggles

Not saying bolt them up, just eye ball it

thatXJguy

Love that truck!

fatboyadams

Maybe a 265/70/17 just make sure you get a load range E.

wiggles

And like he^^ said that's my dream truck just wrong color

Slim357

My bad they are 265/70s they just look so small lol.

Slim357

Me to does an amazing job cant tell when the trailer it loaded just needs bigger turbos or maybe just a lower rpm kick in for the turbos since they dont begin to spool until 2500 rpms :/

Metmknice

33's should fit without a lift.

Slim357

Whats the conversion size for it?

DaBeebs84

285's

dnuccio

x3, but id get the power wagon

Slim357

Sweet gonna have to look into it def need bigger tires on the rig

glass3222

There are calculators online or....

1. take the first number (the width in millimeters) and divide by 25.4, this give you the width in inches

2. multiply be the second number (aspect ratio) divide by 100 (percentage), this gives you the sidewall height

3. multiply by 2, the add the 3rd number (wheel diameter)

Example: 245/70R17

1. 245/25.4= 9.64567 inches *width of tire

2. 9.64567*0/100 or 9.64567/.7 = 6.75197 inches

3. 6.752*2 = 13.504 + 17 = 30.5 = 30.5" tire height

that is the width of the tire.