[Jeff Lee]

I don't race SS/GT, but I can't understand this ruling. I hear more than one SS/GT competitor using late model vehicles have had cracks found in the OEM (built for gas mileage, lite-weight stamped steel) k-frames.
I thought I read on here awhile back that SS/GT racers were looking at using CM tubular k-frames but retaining OEM control arms. Seems if that is acceptable to the FWD conversion SS/GT's, then it should apply to RWD SS/GT cars. I know you can trim the OEM k-frame for pan clearance so I cant imagine there's much, if any, weight savings on a CM k-frame over a stamped steel k-frame. Or am I missing something?