What size are the steel wheels on ZL1 and COPO cars

[Matt R]

My question is what size are the steel wheels on some of the COPO and ZL1 Camaros? 15 X 7 or 14 X 7 or could it be both? Also does anyone know the back spacing for these wheels?

Matt

[bkhpah]

The only steel wheel offered on a COPO Camaro was the XT 14X7. I do not know the backspace offhand, but I think they are fairly neutral. The 15X7 wheels seen in a resent article of Camaro Performers are incorrect... BKH

[Matt R]

bkhpah,

Thanks for the clarification or 14 inch vs 15 inch. What do you mean by neutral in the backspacing? I want to put a set of steel wheels on my 69. I bought a set of the dog dish caps that came on the COPO and ZL1 cars a few months ago. I like the plain jane look.

Matt

[YENKO DEUCE REGISTRY]

Neutral, meaning that the 7inch rim has approx. 3.5 inches of backspacing.
M

[Kurt S]

15x7 steel rally wheels could be gotten on a COPO by also ordering COPO 9737.
Most cars didn't get the second COPO on them and came with the 14x7 XT dog dishes.

[William]

COPOs could also use optional 14 x 7 wheels, either the SS style or the rally wheel.

If optional wheels or COPO 9737 were not specified the car was built with the 14 x 7 standard wheel, coded XT, as used on Camaro SS.

The standard 14 x 7 wheel used on many GM cars from '78-'87 is a nearly a dead ringer for the real XT. Some have been re-stamped so be careful.

Pontiac also used the XT wheel.

[COPO]

William, I had heard that Pontiacs used an "IF" rim that appear to me to be identical to the "XT" rim. Any thoughts?

[William]

Don't know about the IF.

Thought the XT was used on Grand Prix 69-72. I've seen them with a "KH 2" stamp, the 2 indicating Pontiac.