13" mazda rx-7 wheels from 1979-1985 RX-7's should fit no problem, they're 4x110 bolt pattern. Many other early 80's mazdas shared this pattern too. Several ford products used a 4x108 pattern which /may/ fit as well.. I just read the previous pages and saw that someone said they won't fit. I've seen TWO seperate hijets with RX-7 wheels. I'm sure they'll fit. adding to the rx-7 center bore (which is IIRC huge, I'm surprised that the truck is bigger) if that is the only issue it's probably not that difficult to solve. Also, they're probably a reasonably common wheel. All the Base, GS, and GSL rx-7's (about 90% of them produced) from 1978-1985 will have that bolt pattern. That's 200,000+ cars. Or 800,000 wheels.