[5] After several years competing in uncompetitive equipment, Dallenbach's breakthrough came after being signed by team owner Pat Patrick to replace driver Swede Savage, badly injured during the 1973 Indianapolis 500.

Under his tenure, he greatly improved the safety program in CART, the preeminent sanctioning body of Indy car racing.

Dallenbach held his position until the end of the 2000 season, after which he went into semi-retirement, serving as Special Advisor to CART and Chris Kneifel, his successor as Chief Steward.

[8] Advance testing and practice in preparation for the 2001 Firestone Firehawk 600 – to be held at Texas Motor Speedway (TMS) – saw numerous drivers black out due to unprecedented g-forces experienced at the track.

[12] With his winnings from the California 500, Dallenbach purchased a ranch, fairground, cabins and a private automotive restoration garage near the Fryingpan River in upper Basalt.

During their time in Colorado, the couple supported the development of local emergency services in the area; in 1976, Dallenbach purchased an ambulance for the town of Basalt.