Thanks. Actually, I do have the 69/70 brakes on my convertible and they work great. But I'm thinking about going original 4-piston for my hardtop.
Denis 1967 Impala SS Sport Coupe 396/TH400/12 bolt. Marina Blue (South Gate built) 1967 Impala SS Convertible 327/TH400/12 bolt. Ermine White (St. Louis built)