just installed 4 new nitto 555's 245/40 - 18 on my stock rim, & im not feeling the look, i had 225/40 before, i thought a wider tire would look better, guess not. my question for u guys is, can i get a wider rim that will give me my old look back, or should i just go back to my previous size tire,

 

Rims 9 inch wide would be around the same look. your 245/40 would still be a bit taller though.

 

cool thanks yeah it sure is taller, do you have any brand suggestions

 

The profile is a percentage of the width. You increased the width 20mm so if went with 245/35 it would have helped.

Anyway here is a tire calculator.

http://www.discounttire.com/dtcs/infoTireMath.dos

 

This calculator is way better...

http://www.wheelsmaster.com/rt_specs.jsp

To the OP, are you sure you have 245/40s on now? Cuz those are actually shorter than the stock tires, 6mm shorter in fact. I always thought the 245/40s looked better then stock. I'm running 275/35s on a 18x9 right now and couldn't be more pleased.