I understand that. I am ok with spaces that slide over the wheel studs, but not bolt on ones that have their own wheel studs. To each there own, but I don't want to run them.
That's why I went to an F-Body 8.25. It allowed me to use cheap Mustang wheels without spacers, and the cost was significantly less than an 8.75.
If they are similar to the cop car 15x7, offset is like +1/4". With a 235 series tire, that would have about 4.875" from the mounting surface to the back of the tire. What size rear tire right now?
How much room between the tire and spring at the front of the tire?