Springbok fly-half Morne Steyn gave his side hope with a third penalty but Lions stand-off Stephen Jones kept the home side at bay with two kicks of his own, and Odwa Ndungane's late disallowed try for a foot in touch compounded South Africa's misery.
The trio weigh a combined 54st 10lb (348kg), giving the Lions a huge advantage in the scrum, one of the areas of concern during their matches against Bay of Plenty and Taranaki.
Woodward persuaded him to join the Lions tour to New Zealand in 2005 but it ended in disaster as he suffered a serious ankle injury against Bay of Plenty in the tour's first match.