I don't know if there has been a case in American history where a new VP got installed.
Wondering what is the protocol if a VP, gets fired, impeached (dunno if this is posible), resigns or just plainly dies.
If anyone could enlighten me i'd be much obliged
Before the 25th Amendment, a vacancy in the office was simply left unfilled. The impetus for the 25th was the assassination of John F. Kennedy--with Lyndon Johnson's ascension to the presidency, there was no vice president in place in case something befell Johnson. Then-Rep. Gerald Ford was appointed under the 25th following the resignation of Vice President Spiro Agnew in 1973. In 1974, after Richard Nixon resigned, Ford became president and selected Nelson Rockefeller as vice president. After a long congressional inquiry, Rockefeller was approved, making them the country's first nonelected president and vice president.
Interesting, cheers for the link
http://www.slate.com/articles/news_and_politics/explainer/2001/03/how_is_a_new_vice_president_chosen.html
Old but relevant.