For lowers 1964-72 A -body will work. Unless your looking fir the style with oval bushings. I have a couple lowers sitting outside. They came off a 1968 or 69. They are the round bushing style.
I have some down here in sunny South Florida; temperature 82 deg. . Email me for pics, etc.: drolds1@bellsouth.net. Thanks, Bob.
Have both styles - round / round and round / oval bushing. Southern NM condition no pitting. Dave S. 88032