In '67 Mopars were shipped with the base installed and the mast was in the trunk for the dealer to screw in. Mine was a late '67 (July) and had a solid mast. Dad had a early '67 Valiant that had a telescopic mast. Both cars had the same base. '67 was the last year for telescopic masts due to zip gun problems. Inner city kids were making single shot .22 pistols out of them. In '68 the solid mast was used since it couldn't be broken off and turned into a weapon.
