I broke my drivers side spindle years ago and kept it because I knew someday Al Gore would invent the internet and someone would use it to ask about Metuchen paint daubs on V8 spindles.
Upper and lower ball joints had pink (lower looks white in pic but outer edges are pink) A big pink blotch running down the arm. There is a different color around where the tie rod connects (dark orange/brownish) I didn’t see any yellow but that doesn’t mean it was never there.
Also found a brinnel hardness test mark on the back. Not sure if that was normal or random sampling...part still failed