I have read many places that the factory dipped the bare steel lower control arms in cosmoline to prevent rust for a while. Many people on this forum try to replicate this appearance with various gold and amber spray paints. I painted the LCAs with Eastwood Detail Gray which looks like bare
Lets talk Under coating / Rust Prevention, Page 3
beckarnley-102-7543, Front Lower Control Arm
AUX Tank Installation guide (Man-A-Fre Aux tank)
Expedition Navigator Upper and Lower Rear Trailing
Undercoating, Page 16
500_19B's Bugeye resurrection - Page 5 - NASIOC
Fine Sporting Arms Auction September 11 & 12, 2023 by Guyette
Lower control arms are done! For B Bodies Only Classic Mopar Forum
May 2023 Premier Firearms & Militaria Auction - Day 1 by
Direct replacement for a trouble-free installation OE fit and form geometry and alignment Anti-corrosion coating on the control arm for extended life
Replacement Part For Lincoln 95-02 Town Car Crown Victoria 4 PC Upper and Lower Control Arm Kit