Quote: and though I haven't seen every original set, I've seen at least a couple dozen that were fresh off the cars (70 & 71 E-body cars) and none of them had the welded on spacers.
That would support my theory the spacers were only on the B-bodies, maybe only the Charger? I know I've seen a couple other B's with 6-ways (a RR and a GTX) but I've no idea whether the same braces were used.
Nick, I'll check my floor pan and see if I have the plates on the underside of the floor pan. I know the ones on the top side are there.
My car ('71 Charger R/T) is opted with the six way (all original still) and has the welded spacers on the brackets with no plates below but plates above floor pan.
