18x9.5 +40 was a perfect fit on both sides. I almost wish I went +35. But 255/40 is too much in my opinion. 245 is the lowest that the DOT in Rhode Island reccommends for a 9.5 but Im gonna go 235/35 on the next set of Toyos. Want a little more stretch.
Hate to be the bearer of bad news but...
This same thing happened to me on my 05 SER 5AT about a year or so ago.
Brought it to a Nissan dealer ( someone I know works there who I trust ) and he told me my transmission was on its way out. The person who had my car before beat the hell out of...
Set up currently...
05 SE R 5AT
05 350z wheels (18x8 +30)
Toyo Proxes 245/40/18
Mounting the Toyos on 18x9.5 niche targas this week
Should get a little stretch and fit perfect with a fender roll.