why's that? the place i bought my whel from had me get 315's what size should i get. and will i have to modify to keep my new tires. i got Nitto NT555R's 315-35-R17's
no try it w/o a spacer first. But definitely dont go down to 275. They will definitely fit you just might have to do some massaging, maybe flip quad shocks, and a few well placed blows with the BFH(big fuggin hammer)
17x10.5 rim with 315s will fit with out Rolling the Fender lip or Removing the Quad shock
I have 17x9.5s with a 1 inch wheel spacer to sit flush when i used my buddies 10.5s with 315s i left my 1 inch spacer on and never had a problem rubbin and my car was dropped 2 inches.
I have 15x10s with 275-60-15s and They clear with no modification i did remove the Quad shock but was not needed.