Supreme Suspensions - F250 F350 Front Shock Extension Kit High-Strength Carbon Steel Ford F-250 F-350 SuperDuty 4WD 4x4 (Black) PRO FITMENT: 2005 - 2018 Ford F-250 Super Duty and 2005 - 2018 Ford F-350 Super Duty. Only fits 4WD models. TECHNICAL NOTES: Maintains factory ride quality. For front stock shocks. INSTALLATION: Installation is easy and takes between 1 - 2 hours. No special tools are required. CONTENTS: 2x High-Strength Carbon Steel Shock Extenders, Installation Hardware, Installation Instructions and Supreme Suspensions Pro Pack. BENEFITS: Reduces over extending pistons so that your factory shocks can be reused without compromising ride quality. *A<span class="a-text-italic">n alignment is recommended after install.</span> (2x) Carbon Steel Shock Extenders Installation Hardware Installation Instructions Supreme Suspensions Pro Pack