Troon2004

I'm thinking of buying 275/40 for 18x10 rims and would like to know if these will fit all around on my '08 Mustang GT coupewithout "rubbing in the front. Does anyone know from experience and, if so, what amount of offset on both the front and rear is required ?

josephspann

I have 18x9 in the front with 275/40 and they rubbed the plastic guard when i would lock the wheels one direction so I had to cut them. But then again Roush wheels are 10" all around so I'm not sure what they did for them to work.

MustangGT0405

I think it would depend on the off-set of the rim you used. Check what the Roush offset is.

yurka

I have 275/40/18, all around. I regret that I havent went with bigger ones.
There is plenty of room to put bigger ones in, and mine is lowered.
I would go with 295 minumum in rear, and 275 up front.
Here is the link, very cheap tires, you wont find a better deal
http://cgi.ebay.com/ebaymotors/2-New...mZ150218316349

Nuke

I'll be putting 275/40/18's on my new 18 x 9.5" rims (SVT Cobra's with 47mm offset) tomorrow, replacing the stock 235/50/18's on the fan blades with 50mm offset. My suspension is stock. I don't anticipate any problem.

06roush0914

I have 275/40/18's all the way around with no problems at all. The ROUSH 18 x 10 rims have a 45mm offset, I believe. The BFG KD's are still hard to hook [>:].

UrS4

285/40/18 on a 18x10 wheel with a 50mm offset fit on a lowered car with eibach pro-kit. This is what I have been told by many members on various S197 forums.

Import Killa

What is all this offset stuff? I don't know anything about tires except the last number is your size of rims. I want to know what i need to get some 18X10 in back and 18X9 in front.

Sleeper_08

I suggest you go to www.tirerack.com/as they explain tires sizes and wheel rim offsets

F1Fan

Hi Troon2004,

You can easily fit the properly sized 285/40x18 tires on 10" wheels all around even on a lowered car as long as you use wheels with the correct offset. I'm running forged Roush 18x10 wheels all around and the 275/40x18 areabout 1/2"-3/4" shorter than the stock 235/55x17 tires on 17x8 wheels. This makes the wheelwells look a little empty. But a 285/40x18will fit no problem, I have plenty of room between thetire sidewalls andSteeda coilover strut bodies.

HTH!