I have notice that all three of GMs ''others'' A-body of 1970-72 that came with A/C have additionnal set of little louver under the dash in front of the driver and in front of the passenger. Only Buick dont have those.... why??
Re: Underdash louvers question(buick GS, chevrolet CHEVELLE, oldsmobile 442, pontiac I know Olds used them but I guess Buick felt they were not needed. One less PIA part to remove when working under the dash. I have worked on my fair share of both Olds and Buick and the Olds is worse but all AC equipped cars are a pain.
