Shy v. Navistar International Corp.

OPINION

SILER, Circuit Judge.

The class action plaintiffs (“Shy Class”) initiated the current litigation by seeking an injunction against Navistar International Corp. (“Navistar”), claiming that Navistar’s unilateral move to substitute Medicare Part D into their medical plan violated the parties’ 1993 settlement agreement (the “Agreement”). The district court found that Navistar’s actions were in violation of the Agreement and ordered Navistar to reinstate, retroactively, the prescription drug benefit that was in effect before Navistar made the unilateral substitution.

On appeal, Navistar raises…