My 57 has 605 power steering pump and you can’t move the pump much. The mount doesn’t fit the firewall well. There is a 3/8” gap at the bottom and the mount needs about 1/2 in more material added to the bottom so you can elongate the slots enough to fit the bolt holes in the firewall. Also I’d you have power brakes you will need to drill a hole up in the top for the power booster. Ididit recommends this piece..and they shouldn’t. It is not a good part especially for the money. I welded on anotheR 1/2 in of aluminum across the bottom as the bolt holes need to be centered right on the bottom edge of the plate.