I widened my GXP wheels 1.5", and got some 285/35-19's for the rear.
When I went to install them, they cleared the inside and outside OK, but the wheel was contacting the Spohn LCA!! Glad we noticed it before we rolled it.
I ordered the MotorSports Tech adapters, 3/4", correct hub-centric, and spec'd the M14x1.5 studs. Went to put them on today, and found that the lugs they supplied are not cut at the same angle as the adapters, so they don't fit flush. I sent an e-mail to them to ask what the solution should be.
It kind of pisses me off that they would send them out like this. I don't mind having to cut the original studs to add clearance for the wheels, but to not have the lugs fit flush? C'mon, man!
I'm going to hit the Fastenal tomorrow to see if they have anything that can work. If not, to the machine shop the adapters go, to have them countersunk to the correct dimension and angle.
I also bought an Eastwood fender roller, and rolled the fenders tonight. Pretty easy!!
'09 Pontiac G8 GXP, A6, Sunroof, MGM, #1664 of 1829
LS3 with window in block. New LS3 on the engine stand, being built.
BMR Rear LCA's, stabilizer bars, end links, front LCA bushings, rear toe links and trailing arms, Pedders Street II kit, including subframe and diff bushings.
Hawk Ceramic pads, Brake Performance slotted and dimpled rotors, Russell stainless lines, Super Blue fluid.
Best 1/4 time - 12.52 @ 114.47, 1.94 60ft.