Fox caster sleeves for 2005+ Ford F-250 and F-350 Super Duty 4x4 are replacement hardware components listed for those Super Duty models. These sleeves fit the applicable suspension joints to restore or modify caster clearance where the Fox-specified sleeve is required, and are intended for use in service or upgrade of the front suspension on the stated Ford Super Duty applications.
Fox 05+ Ford F-250/F-350 Super Duty 4x4 Caster Sleeves