Fits Rear Applications on the following Vehicles: 2003-2010 Chevrolet C4500/C5500 Kodiak, 2003-2010 GMC C4500/C5500 Topkick - 2WD, 1999-2018 Ford F-450 & F550 Super Duty - 2WD & 4WD
For chassis cab models only; Do not use on pickup models for Ford F-450 & F550. May be used on trucks equipped with top overload spring.