How To: Fitting the upright vent window rubber (folding the tabs) for GM Production vehicles.

The is the same process required to mount the vent rubbers into EJ EH, HD HR, HK HT HG Holden's, 55-57 Chevrolet and many early Buick, Cadillac, Chevrolet, Oldsmobile, Pontiac production vehicles from the late 40s to the mid 60's.