Hillin then joined Team Ireland late in the 1991 season, and then for a partial season in 1992. When the team closed late in 1992 after being disqualified at the October Charlotte race, Hillin moved to Donlavey Racing, running the full 1993 season for the team. After three races in 1994, Hillin resigned from the team; Hillin ran a partial schedule the rest of the year for Charles Hardy Racing and Moroso Racing, then attempted two races early in 1995 for Moroso, before joining Jasper Motorsports twelve races into the 1995 season, replacing Davy Jones. Hillin remained with the team through 1996 and into 1997. Hillin also competed in the Suzuka Thunder Special, an exhibition race held at Suzuka Circuit in Japan following the 1996 season; he finished seventh in the event. He was released from the team after failing to qualify for the 1997 Coca-Cola 600; he continued to drive for the team through the Pocono 500 before being replaced by Morgan Shepherd. Later that year Hillin attempted three races for Triad Motorsports, failing to qualify for any; he would only drive one further Winston Cup race in his career, at Bristol Motor Speedway in 2000 for Melling Racing, substituting for an injured Stacy Compton.