I was tooling around the internet and found this picture. If you look in the back, it seems like the rims have a little deeper dish than on the fronts. Anyone know about this? I have heard they may be c4 rims, but I cant find any pics.

 

I think the picture just makes it look like they have a bigger lip. Kinda weird to look at, but I think they're just like the front.

 

Probably 17x11's in the non GS offset. Wheels stick out a little and you don't need to massage the jounce spacer or your inner fenderwell. You might need to roll your fender lip if you have a lowered car. Mine rubbed on the pass side in tight turns (coulda used an adjustable panhard bar). I have a set of GS and nonGS rims.
Mike G.

 

I was just racing against a ZR1 today! (see pic at the bottom of this page). The back wheels definitely have a deeper "dish" if you want to call it that. Where the lug nuts go is much deeper than compared to the front wheels.

Oh, BTW...............stock LS1's don't do well against modded ZR1's!! I learned the hard way!

 

Yeah, those would be ZR1 offset wheels.

 

I could swear that they are not sticking out from under the fenders at all. It seems like they are tucked right underneith the fender edge. This is gonna **** me off until I find a definite answer

 

Those are ZR1s with the ZR1 offset, just like I have. The part where it's sticking out past the fender is in the front and rear of the wheel arc, not the top. The top of the tire will tuck perfectly if the fender lip is rolled well. And yes, ther inside needs to be pounded in too for taking turns.

 

The reason they don't stick out on the ZR-1 is because GM flared the wheel openings a bit so they would clear. They didn't want to go to the same trouble on the GS model so they played with the wheel offset to make it fit. If you look closely at the rear wheel openings of a 92-96 C4 and then on a ZR-1 you will see the difference.