Could you get WS6 wheels without ordering the WS6 package?
I'm talking the 20 fin w/ silver cap w/ WS6 lettering.

If so, what models had that option? And if you could get those on a non WS6 bird, did they have different center caps?

 

what is a 20 fin ws-6 wheel?

 

This wheel...

 

I've seen that on Formula's also. Didn't realize that was a ws-6 wheel.

 

Those wheels were specific to the Formula model, which had WS6 suspension as standard equipment.

Non-WS6 cars came with a similar looking rim but in 15"x7" size.

 

The pic in post #3 looks like the 15" wheel.

This is a 16" that have different offset for front and rear, which I believe is the "WS6" wheel for certain years:

 

Picture in post #3 is the '88-92 16"x8" Formula wheel. The 15" version doesn't have the fake screw holes around the perimeter.

Picture in post #6 is 1984 15th Anniversary T/A(painted white), 85-87 Trans Am with WS6, and 1987 Formula 16"x8" wheel.

 

Thanks Dens71TA. That's the info I was looking for. The #6 post wheel I had on an 86 T/A w/ WS6. I've heard that wheel called the convex WS6, and the #3 post wheel called the concave WS6. Is that right?

 

So looks like all 15" wheels had the same offset front and back, and all 16" wheels had a different offset front and back. And I think there were only 3 - 16" wheels to choose from. Am I right?

 

Sounds correct..

 

My 91 came with ones similar to those in post #3. But I believe mine are more concave.

 

Same wheels. the one in post #3 has a 225/50/16 tire on it and the angle of the pic makes it look a bit diff.