Gerber was also an associate sponsor on the No. 1 Chevrolet of Vinnie Miller.
Chastain drove the JD Motorsports with Keller's No. 4 Chevrolet Camaro. Chastain, having another excellent season, is 12th in Xfinity Series points.
Gerber Collision & Glass has been a JD Motorsports partner for eight years.
"I can't say enough about what a great relationship we've had with the Gerber folks over the years," said Team Owner Johnny Davis. "Just like them, we work in the car business. Racing demands quality workmanship, just as Gerber provides quality workmanship for its customers in body repair and glass replacement. It's a perfect partnership."
Car owners have trusted Gerber Collision & Glass with their auto body repairs and auto glass repair and replacement for more than 80 years. Gerber started with one auto glass and trim shop in Chicago and has spread to nearly 400 shops in 22 states across the country, including more than 60 locations in the Chicagoland area.