Team ownership has been a huge part of the sport since NASCAR's first Strictly Stock (now Cup Series) season of competition in 1948. Some competitors drive, while those that own the teams make sure the  cars are prepared and sponsored and ready to race. It's a model that has produced hundreds of victories and many, many championships.  A large number of team owners in NASCAR competition are just as well known as the drivers that have raced their cars. NASCAR Historians Ben White and Jerry Bonkowski discuss many of their incredible legacies as well as the origins of the number 70  in NASCAR history in podcast No. 70 of "A Lifetime in NASCAR. Also discussed is a look back at the life and career of NASCAR legend J.D. McDuffie.  Give "A Lifetime in NASCAR" a listen for some interesting information on this week's podcast. Learn more about your ad choices. Visit megaphone.fm/adchoices