Rubuta ci gaba ga wannan sakin layi - Brabham ya maye gurbin Schenken da Argentinian Carlos Reutemann don 1972. Hill ya kasance tare da tawagar, amma Brabham ya sanya Argentine a cikin BT34. Babban Prix na Argentina na 1972 ya ga Reutemann ya ɗauki matsayi na farko a babban kyautarsa amma ya gama na bakwai. Dan wasan na Argentina ya yi ritaya daga Afirka ta Kudu saboda gazawar tsarin mai. Reutemann ya karya idon sawunsa bayan lalacewar inji a kan Rondel Racing ya shiga Brabham a Thruxton yayin tseren Formula Two. Ba a yi amfani da BT34 ba a cikin Mutanen Espanya da Monaco Grands Prix. Ga Belgium, Brabham ya shiga mota ta uku don ɗan Brazil Wilson Fittipaldi, amma ya yi ritaya tare da akwatin gearbox. Dan wasan na Brazil ya kammala na takwas a gasar Grand Prix ta Faransa. Fittipaldi ya gama na 12 a Biritaniya duk da cewa ya dakatar da motar a zagaye na 69 tare da katsewar dakatarwa. Dan wasan na Brazil ya kammala na bakwai a gasar Grand Prix ta Jamus
Ka yi haƙuri. Fittipaldi ya yi ritaya daga tsere huɗu na ƙarshe na shekara, gazawar birki a Austria, rushewar dakatarwa a Italiya, fashewar gearbox a Kanada da gazawar injin a Amurka.