Just like the Uncanny X-Men post, here are some covers from roughly the same time period. It starts from issue 71, which is when a new team was formed: Valerie Cooper (government liaison), Havok, Multiple Man, Polaris, Quicksilver, Strong Guy, and Wolfsbane.
The stories in the early issues of this series were written by Peter David and drawn by Larry Stroman. Larry is also famous for the biggest ass on a woman in comics: Rosalyn of Tribe.
X-Factor Covery Gallery
Big Ass Rosalyn!
Larry Stroman apparently likes ’em big.