I am looking at installing these wheels on my car and I have a few questions. Its is a 2000 WS6 with stock WS6 wheels. I assume they are 9" wide correct? But what is the off set?

I am considering 18" wheels, should I just go 9" all the way around? If so what size rear tire would be close to the 315-35-17's I have now? Same off set on the 18" wheel as 17"?

Thanks.

 

I've only seen the 18s in 18x8 or 18x10 for our cars.

You'd have 17x9.5 and 17x11 in the 17s

 

So If I decided to get 17's it would have to be 17x9.5 in the front and the 17x11 in the rear or could I run 17x9.5 all the way around? 17x11 would require a BFH and fender rolling wouldn't it? What off set would I be looking for?

For the 18x10 would the rear fenders need rolled?

Thanks.

 

You can get 17x9 all the way around. A lot of people do it to be able to rotate there tires.

And have no clue on the 18's but im sure someone will chime in.

 

18x9.5 front 275 35 18
18x10.5 rears 295 35 18

when i replace tires im
going 285 35 18 front and
305 35 18 out back
im stock height
no bfh no rolled fender

when I lower it i will bfh and
roll fender

 

Whoa, so if I read this right, your running 315's on a stock rim? If so I guess you have been lucky in not hurting yourself.
Myself and many members on have ran 315/35 17's on a 17x11 rim for years without the BFH mod or fender rolling, the T/A's have slightly more room for 315's than the Camaros do. So you most likely can get away without the BFH.
If you go 17's your gonna need 7.5" backspacing in the front, and 7.75" backspacing for the rear. I'm really not sure on backspacing on the 18's

 

Even at stock height on my T/A I ended up bfh'ing, and that was with BFG tires. When you go into turns, or hit bumps one tire is going to gain camber. The top of the tire was rubbing the inner fender. When I lowered rolling the fender lip became a necessity also.

 

hmm, i've never had any rubbing in 4 years/2 sets of tires, and im lowered with the slp bilstein/eibach pro kit.

 

This doesn't surprise me. YMMV with 315's. When I had a solid axle, and would go hard into turns, specifically on hard left hands turns, the passenger side tire would contact the inner fender. Hard right hand turns would cause the driver side tire to hit the lip. This is with the wheels perfectly centered at rest. Reshaping the fenders, and fender lip helped clear up the problem. I should add also that Goodyear Eagle F1 GS-DS3 are known to be wider than other 315/35/17 tires.