ok people kinda stumped. how does one go about figuring how much offset is needed when purchasing rims. the rims need to be 12" wide to accomodate the hoosiers i bought. how much offset does stock 85 IROC wheels have? has anyone put 12" wide rims under a stock IROC fenderwell an how much offset did you use? is there a simple way to figure offset? thanks. sick

 

Try this site Sick. All about offset.
http://www.americanracingwheelsinfo....eel_offset.htm

 

thanks pete ... i finally figured it out. a guy at a rim shop confused the hell out of me. he kept insisting he needed the offset of the front tires to get me rims for the back. i kept telling him what in the heck does the front have to do with the back. finally i gathered that he thought i meant that i wanted them backspaced like the front. i blew him off and searched around and found summit to be the most reasonable. i only need the offset rims until i get it tubbed so, i'm not wanting to spend a fortune. i can get two 10 inch rims there for less than a hundred. thanks for the reply. sick