The lowest winning percentage is .769 (10-3) by Boise State in 1980.
Miami
notre dame
Notre Dame
The 1-A champion was the Oklahoma Sooners led by head coach Barry Switzer.
Go to the following web site:
University of Notre Dame
Purdue
Just a guess.....BYU in 1984. * but it is not an "NCAA" championship in Division 1a. The NCAA calls them a "national poll champion".
1986 Joe Paterno College football NCAA champion coach
Florida
university of Montana
869 Wins 286 Losses and 36 ties.