The jc whithney ones look alot like what i have been looking for, except they don't have the bowtie in the center.
If you have a year one catalog from yearone.com, there is a picture of some on page 247, but they don't sell them in the catalog. That is a 72 truck that they are on, but the wheels are the same ralley wheels like on a 73-87. I think they must be the kind that slip over the original center cap and have the allen screws.
I would get the jc whitney ones, but i like the look of the bowtie in the center of the wheel