Guess I been around too long. Wheelcovers are terms car salesmen used. Me an my freinds have always called them hubcaps, we've always called it Posi'traction, UNLESS we were talking about SPECIFIC rear ends, NEVER have used the term rat rod, unless it was REALLY UGLY, BBC's have always been Rat engines(ALOOOOONG time ago, we called 'em porcupine's due to the way the valve stems are all crazy angled), and I don't believe it has ANY conotation to the junk some guys call rat rods. Things change, but yet stay the same!