Vintage Old Stock Moog K-716/K-778 Upper Ball Joint.. Moog changed this part # in the mid 1960's
This one is in a pre 1962 style box that crumbles with a touch. Also note the early style of metal washer type seals under the Rubber boot..
Rubber boot is not hardened
Fits .
Chrysler
1960-64 All Saratoga, New Yorker
1960-61 All 300
1960-70 All Imperial
S1ABX2