A Dependable Solution. So, youve added an airbag system to improve the ride quality and load carrying capacity, but you dont want to lose your suspensions full travel. If youre looking for a way to keep the benefits of airbags while also recovering some of the suspension travel they lose, you need Rough Countrys Universal Air Spring Cradle Kit. This kit is designed to work with any convoluted airbag with a 4.11 in. or smaller diameter, providing more room for the airbag to cycle safely. Made of glass-reinforced nylon, this kit is tough and durable.\