Lock will make his first test start in place of the suspended Brad Thorn while tighthead prop John Afoa replaces veteran Greg Somerville.
They are the only changes from the starting 15 who beat the Springboks 19-8 in the Tri-Nations opener in Wellington last Saturday.
Uncapped lock Kevin O'Neill comes on to the reserves bench.
New Zealand team named today for the Tri-Nations rugby test against South Africa in Dunedin on Saturday:-
Mils Muliaina, Sitiveni Sivivatu, Conrad Smith, Ma'a Nonu, Rudi Wulf, Dan Carter, Andy Ellis, Jerome Kaino, Rodney So'oialo (captain), Adam Thomson, Ali Williams, Anthony Boric, John Afoa, Andrew Hore, Tony Woodcock.
Reserves: Keven Mealamu, Neemia Tialata, Kevin O'Neill, Sione Lauaki, Jimmy Cowan, Stephen Donald, Leon MacDonald.
