Sammy 'The Bull' Gravano recalls chilling mob request that helped clear John Gotti's path to power

Former Gambino crime family underboss Sammy "The Bull" Gravano dished on the moment he was asked to help pull off one of the mob's most audacious power plays — the murder of John Gotti's own boss.

"We have problems with Paul.

I need your help.

We need you — me and John Gotti," Gravano recalled being told by Gotti associate Angelo Ruggiero.

"I said, 'To do what?'" he recounted on the "Hang Out With Sean Hannity" podcast.

SAMMY 'THE BULL' REVEALS WHY HIS LOVE FOR JOHN GOTTI TURNED INTO PRISON HATE "We're gonna kill him." The target was Paul Castellano, then-boss of the Gambino crime family, one of the most powerful figures in organized crime — making the request anything but an ordinary mob "favor." "You're gonna kill the boss of bosses?" Gravano recalled asking, prompting Ruggiero to respond, "Yes, and we need your help." The gravity of the request wasn't lost on him, he told host Sean Hannity.

A hit on a boss could carry serious — even deadly — consequences for everyone involved.

Gravano recalled pressing the issue and asking where Gotti was himself.

JOHN GOTTI PAL: I STASHED $10M IN MY KID'S TOYCHEST "I told him, 'Angelo, first of all, where's John Gotti? You're talking to me.

Where is he?'" The back-and-forth between the two men continued, with Ruggiero insisting that Gotti "had something to do." "[I said], 'He had something more important than asking me to kill the boss of bosses or help you kill the boss of bosses? I don't know what's more important than that,'" Gravano recounted.

"This is a big deal," he added.

Castellano and his new underboss, Thomas Bilotti , were ultimately murdered outside a New York City steakhouse in 1985.

Gotti was the mastermind behind the incident and would soon be convicted for ordering the crime.

Gravano's sit-down conversation with Hannity went beyond the incident, into his time with the mob, his involvement in nearly 20 murders and much more.