[blue04gto]

19x8.5fr (1" 1/2 Front Lip) & 19x9.5rr ( 3" Big Rear Lip) Offset 38fr/40rr

 

[johnebgoode]

I'm going to take a shot here and say "slim possibility". Only reason is there aren't a whole lot of GTO owners that have gone the 19" route, and I figure there has to be a reason.