Moog replacement for 1972 & earlier A-Bodies below the Moog K750074
Moog K8266 replacement for 1972 and earlier A-Bodies.
New ball joint style for Ford applications. As you can see, the "business length" is a bit more than a half inch longer. It's close to a bolt-in. If the extra half inch causes interference, it can always be shortened like @Kern Dog did in post #11.