Im just curious as to the stuctural differences between a 85 IROC and a '91 Z28. Are there any big differences or do they have pretty much the same framework?
Moderator
No difference.
Supreme Member
The only difference is that the 91-92 "frames" use adhesive as well as welding... making them more stiff. I am positive about the 92, but the 91 i don't think used as much.