Can I get these (SSR GT3)...

in 19x8.5 in front and 19x10 in back to fit on the SC430. Is there a similar size setup that would work. (Maybe 18" in the front and 19" in the back like on the SC430 pace car.) Does anyone have ANY info on this?

 

I don't think It'll be a problem. Check the Tire Rack.

MAC

 

I wouldn't see why it work, but the rears are backordered mationwide (I believe)

 

I wouldn't stagger the wheel diameter: you'll need to run 245/40-18 front and 275/30-19 rear to keep the ABS and Traction Control from freaking out.

This will mean a taller sidewall in front than in the rear- NOT cool!

 

I would do 19" up front and 20" in the rear but 18" up front and 19" in the rear wouldn't look too nice IMO.. Staggered 19's all the way around look VERY nice..

Thanks again SoCalSC4 for helping me out with my offset questions when I was ordering my wheels.. They turned out perfect for both cars just like you said they would! You are the man!