Wheel size and what fits

Hello all, I am a newbie, so bear with me, just purchased a 2010 base Tacoma, 15 in steel wheels, would like to dress it up for the summer, Dealer tells me 18” alloy wheels . So what do I need to be sure the 18” wheel is going to fit where the 15” fits now? Also what diff does it make in my spedo and odometer?
Thanks

 

Welcome to the site. When you say base with 15" wheels, I'm guessing 4 cylinder 5 lug that came with the 235's?

 

If it has 15" wheels, it has to be a 5 lug.

Check out this thread where a TW member put 17" Mustang wheels on a 5 lug. It looks good.

https://www.tacomaworld.com/threads...s-fit-2006-tacoma-5-lug.636391/#post-21932346

 

You should check out the 5 Lug Forum section on this site.
Lots of ideas from people who already switched wheels.
The easiest route is to use wheels from RAV4's, Highlanders, and Siennas.
I've got a set of 16" RAV4 wheels on my 5 lug.

 

Also check out wheel and tire section .Wheel calculator . Tells you tire measurements of tires you want vs your stock .Also gives difference in speedometer vs stock tire .

https://www.tacomaworld.com/tirecalc