ku dhameystir weedha soo socota: Baabuurta Brabham waxay ku tartameen Indianapolis 500 laga soo bilaabo bartamihii 1960-yadii ilaa horraantii 1970-yadii. Kadib mashruuc fashilmay sanadkii 1962, MRD waxaa loo xilsaaray 1964 inay dhisto shaashadda IndyCar oo ay ku shaqeeyaan matoor American Offenhauser ah. Qeybta BT12 ee ka dhalatay waxaa ku tartamay Jack Brabham oo ah "Zink-Urschel Trackburner"
1964 tartanka waxaana laga joojiyay sababtuna ahayd dhibaato shidaal. Gaariga ayaa mar kale la galay 1966, isagoo kaalinta saddexaad u galay Jim McElreath. Laga soo bilaabo 1968 ilaa 1970, Brabham wuxuu ku soo laabtay Indianapolis, markii ugu horreysay isagoo wata nooca 4.2-litir ee Repco V8 kooxda loo adeegsaday Formula One<unk> kaas oo Peter Revson uu ku dhammeeyay kaalinta shanaad 1969<unk>ka hor inta uusan ku laaban mashiinka Offenhauser ee 1970. Isku darka Brabham-Offenhauser waxaa mar kale galay 1971 J.C. Agajanian, isagoo dhammeeyay kaalinta shanaad ee gacanta Bill Vukovich II. In kasta oo aysan jirin baabuur Brabham ah oo waligiis ku guuleystay Indianapolis, McElreath wuxuu ku guuleystay afar tartan oo United States Automobile Club (USAC) intii lagu jiray 1965 iyo 1966 ee BT12. "Dean Van Lines Special" oo Mario Andretti ku guuleystay horyaalnimada qaranka ee USAC 1965 wuxuu ahaa nuqul toos ah oo ka mid ah baabuurkan, oo uu ogolaansho ka helay Brabham oo uu sameeyay madaxa shaqaalaha Andretti Clint Brawner. Revson wuxuu qaatay Brabham guushii ugu dambeysay ee tartanka USAC ee BT25 sanadkii 1969, isagoo adeegsanaya mashiinka Repco.