Don Brewer and Mel Schacher of Grand Funk Railroad, who were kicked off as opening band for Led Zepplin. They were ordered off the stage when Peter Grant threatened Grand Funk's manager to get them off or else.
Also, I would put in there Bill Ward and Geezer Butler who provided the bottom and backing for the fathers of heavy metal; Black Sabbath.
And, for a few extra combos; Noel Redding & Mitch Mitchell and Jack Bruce & Ginger Baker.
For the life of me, I can't think of any contemporary combos.