Duane Carling is a renowned expert on Independent Rear Suspension (IRS) systems for classic Mustangs, particularly known for his deep knowledge and hands-on experience with retrofitting IRS into vintage Ford models. With a background in engineering and a passion for performance driving, Carling has become a go-to authority in the Mustang restoration and modification community. His work combines technical precision with a respect for the original design, offering enthusiasts a way to significantly improve handling and ride quality without compromising the classic character of the vehicle.