Lousy brakes

I still don't quite trust the A1CARDONE calipers,they were brand new castings and I'm sure made in China, so I have tons of caliper cores and 1 pair of rebuild kits. those same calipers go all the way up to my 87 5thAve as do the rotors. just have to get the energy to get to it. thanks for guys pitching in with ideas!!