Which offset

I am gonna go with 18x10.5 Z06 wheels form replicawheels.com and was wondering which offset should i go with and which one would look better. The first one was made for lowerded cars or stock suspension and the 2nd one i guess was made for f-bodys with stock suspension. So please help me decide on which offset thanks.

The +56mm offset wheel also fits 1993-2003 Camaro, Trans-Am and Firebird (rear only, not convertible) with stock or lowered suspension (up to 1 1/2" drop) - to be combined with 18x9.5" or 17x9.5"s on the front.

or


Same +36mm offset with 7.4" backspacing also fits 1993-2003 Camaro, Z28, Trans-Am and Firebird (coupe only, not convertible and Rear only) and is to be combined with 18x9.5"s or 17x9.5"s on the front (these offset works on cars with stock suspension).

Where did you get those "quotes" from? They don't look right. When they mention a 36mm offset producing a 7.40" backspace, that would apply to an 11" wide wheel, not a 10.5" wide wheel. A 36mm offset with a 10.5" wheel will produce a 7.15" backspace, and a 4.30" "front" space. That puts the outside edge of your tire outside the fender line.

If you opt for a 56mm offset, on a 10.5" wide wheel, you end up with a 7.93" backspace, which is the same thing you get with the ZR1/GS 50mm offset 11" wide wheels. That deep a backspace results in the need for hammering the inner fenders, cutting the outer edge off the jounce bumper brackeet and recentering the car with an adjustable panhard rod ON SOME 4th Gens.

You might want to trya "search" for posts on the Z06 wheels.... the factory offset on the 18x10.5's is 58mm, and that causes significant problems with the inside fenders. I have seen people post regarding some aftermarket Z06 wheels that have a 52mm or 54mm offset, which appears to be a better choice. I know I have posted on that thread, so if you do a search on "Injuneer" on "Wheels & Tires" you should find it.

I found those quotes on replicawheels.com website. Thanks for the help.

Well did a search found some good info but still have no idea which offset to choose. So Injuneer im gonna ask for your help and ask you to choose which offset you would go with since you know a lot more about this stuff then me and also i will feel a lot more comfortable if you chose the offset for me. So its all up to you :) .

Check this thread:

http://web.camaross.com/forums/showthread.php?t=277905

Right near the bottom, there is a post that has a link to a car that has the Z06's from Performance Wheel Outlet. They appear to make a 50mm offset wheel, which would be my choice. That gives you breathing room on the inside fender.