I retired in 2006 at 56 when my GM plant closed. I receive a basic benefit and a supplemental benefit. When I turn 62 does that supplement go away wether I start soc. security or not? I've searched my union papers and can't figure it. It certainly would change if I take soc. sec. at 62 or not. I'm on the fence as to if I should take it at 62 or wait.