Topic: 1970 control arms

[1969 Cale II]

Here are some shots of control arms from a 70 Torino, what I know they are the same as Mustangs. The uppers have a purple/lavendar color around the ball joint end, painted before the ball joint was installed. The lower shows how much yellow was used on the stud. A friend who has a 70 CJ car said his uppers had the same marks, anybody else find this mark? These are from a unrestored low mile, clean San Jose car