I bought a set of four 17x9.5 black ZR1's with the black center cap from tomzwheels.com. I barely bought them about 2 months ago. Now I am looking to trade the 2 rear ones for two 17x11 black ZR1's. I have 275/40 mounted on them with about 70% tread left on them. I am looking for the wider look out back. If interested please send PM. Located in Texas panhandle in Hereford Texas.