Looking to pick up some 255/60r15 Radial T/A tires and they dont sell them in 16 so 15 will have to do. So I need to find a set of 15inch wheels that actually look good on an Iroc-Z. Any suggestions will be greatly appreciated.

This tire

http://www.jegs.com/i/BF-Goodrich/13...d=#moreDetails

On this wheel

http://www.jegs.com/i/Cragar/260/618...rentProductId=

One Crager has
Rear Spacing: 4-1/4''
Offset: -6mm

and the other Crager same size has
Rear Spacing: 2-1/2''
Offset: -51mm

What do those numbers mean and will it work on my Iroc-Z?

 

5 by 4.5 is the lug pattern, 5 studs, on a 4.5 inch circle. meaning for your car they will not work. you need a 4.75 lug pattern. I like stock wheels

 

Weld pro stars or draglites

 

Believe me I love the stock ones as well. But they only make the BFG radials with white letters for 15 inch wheels so its my only option. Maybe Im reading your post wrong but you said its a 5/4.5 but then say I need 5/4.75? Which one, because they sell both.