Lincoln Extreme Front Air System, 61-69Our Lincoln Extreme Front Air System is the ultimate way to layout your ride and retain full functionality and comfort. The system incorporates an optimally placed front shock and non binding geometry for increased comfort and handling. Designed to use up to a 29" tall tire and is compatible with factory drum or aftermarket disc brakes. The system includes upper and lower control arms, shock relocation bracket, KYB shocks, air bag cups and all