I know this question has already probably been asked but I need to know how wide i can go on the front on the 18 inch 8.5s and rear 9.5s tire width im thinkin 245 40 18 and 275 40 18 with no problems?

 

ya i think u would be ok with that tire size man good luck

 

I ran 9.5 +12 and 10.5 +15 with 245.40.18 and 275.40.18 no problem. You'll be fine.

 

Best way to avoid a headache: Stick with the OEM sizes.

 

Stock rims are 18x8 front and rear for 03 to 05 , 8 front 8.5 rear on track on newer. You need different wheels to run 275's on the rear.

 

^^ He says his rear wheels are 9.5" wide, so 275's are very conservative and will work.

--Spike

 

He also said they are stock, which would be contradictory to his statement...

 

Is that the widest i can go with 18 inch 9.5 rears? Can i go wider than 275 with no probs, if so whats the widest?

 

its an 08 350 buddy

 

The base wheels are 18x8 Front and 18x8.5 Rear. The GT wheels are 18x9 Front and 19x10 Rear. The Nismo Edition wheels are the same dimensions as the GT wheels. The chrome wheel option, I believe are 18x8 at all four corners. If your Z has a 9.5in wide rim, they are not stock, unless you bought the LMGT4 wheels as an added accessory.

TK

 

What about 295/30 on an 18x9.5 rim? I know they're not recomended but has anyone tried that? Thanks and sorry for hijacking the thread op.

 

Want wider tires? Get wider wheels.

 

i agree if they are stock they arent 9.5's but if you have 9.5's magically then 285 will work i wouldnt go any wider unless you actually need them for traction.