Marika Koroibete has beaten Henry Speight to the Wallabies number 14 jersey for the second week.
Tevita Kuridrani will start at outside centre.
Henry Speight and Samu Kerevi have been listed on the bench.
It is the first time coach Michael Cheika has named the same starting side in consecutive matches since he took control of the side during the 2014 Spring Tour.
The All Blacks meet South Africa 3.05am Sunday while Argentina meet Australia at 10.40am Sunday.
Wallabies team to take on the Pumas
1. Scott Sio (37 Tests)
2. Tatafu Polota‑Nau (76 Tests)
3. Sekope Kepu (85 Tests)
4. Izack Rodda (3 Tests)
5. Adam Coleman (16 Tests)
6. Jack Dempsey (4 Tests)
7. Michael Hooper (c) (73 Tests)
8. Sean McMahon (20 Tests)
9. Will Genia (83 Tests)
10. Bernard Foley (50 Tests)
11. Reece Hodge (18 Tests)
12. Kurtley Beale (65 Tests)
13. Tevita Kuridrani (52 Tests)
14. Marika Koroibete (2 Tests)
15. Israel Folau (60 Tests)
Reserves
16. Stephen Moore (123 Tests)
17. Tetera Faulkner (2 Tests)
18. Allan Alaalatoa (17 Tests)
19. Rob Simmons (76 Tests)
20. Lukhan Tui (1 Test)
21. Nick Phipps (56 Tests)
22. Samu Kerevi (12 Tests)
23. Henry Speight (16 Tests)
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