KYB Shocks & Struts Gas-A-Just Rear FORD F250 Super Duty (4WD) 1999-04 FORD F350 Super Duty (4WD) 19

This is the KYB Gas-A-Just rear shock absorber, designed to fit your 1999-2016 Ford F-350 Super Duty 4WD. It's built to give you a more responsive feel and a comfortable ride, whether you're just cruising or need a little extra performance on demand. This shock absorber helps ensure your vehicle's electronic safety systems function as the manufacturer intended, by keeping your suspension working correctly.

Unlike standard twin-tube shocks, the Gas-A-Just uses a monotube design with two separate chambers. One chamber has a hydraulic piston and valve system that adjusts instantly to your driving needs, providing better control. The other chamber holds high-pressure nitrogen gas with a floating piston. This setup offers a smooth ride during normal driving but quickly adds performance when you need it, without experiencing fade.