In the mid 1960s, the Wolfman crossed the border to Mexico and joined the 250,000-watt powerhouse XERF-AM. Thanks to XERF and later XERB-AM, the Wolfman reached most of the southwestern United States while selling everything from coffins to inspirational literature and baby chickens.
After Wolfman Jack temporarily left XERF 1570-AM he moved to XERB "The Big- 1090" and was DJ and station manager from 1966-1971. The station was actually licensed to Bob Smith aka Wolfman Jack for the Tijuana / Rosarito area of Baja California, Mexico.
XERB was immortalized along with Wolfman Jack in the George Lucas movie American Graffiti. Wolfman was able to make the station turn a huge profit by selling programming to radio proselytizers in 15-30 minute blocks. Because they had such a large following and made so much money, the radio evangelists were never too hesitant about paying huge fees for airtime. As if being on one border blaster wasn't enough, Wolfman began broadcasting pre-recorded shows on three different Mexican stations at different times of the day, XERB, XERF, & XEG 1050-AM in Monterey, Mexico.
According to his biography, by 1971 Wolfman was making a profit of almost $50,000 a month. The Mexican company executives that leased XERB noticed this and got greedy. They wanted to throw him out and make all the money themselves.