Why not? I used to use the mono leaf shock mounting plates on my multi-leaf 1968 Bird. They had a much stronger double ear that provided support on both sides of the shock bolt mounting eye. I had managed to break the '68 multi mounts. I see where Firebird Central sells those QA1 as mono or multi leaf. But Rock Auto sells the same part number of various brand shocks for both types of springs. Maybe QA1 does something different that requires two different parts? Not trying to be a dork, just want to learn.