Father, Son, and Grand Father project. 1963 Valiant
undercoating....while nasty to remove, did a great job preserving your Mopar. I just removed some on a 72 Swinger HDK / Hemi build for frame connectors, some chassis mods and sheetmetal repair.....not a fun job but ya make the best of it. In the grand scheme, it is cake, for there are far worse things...(ask a combat vet).
outstanding effort.... and results!