Rough Country 045 M1 Rear Shocks for 20172022 Ford Super Duty 770804A

2inch seamless extruded tube. 46mm digressive piston. Selfadjusting, deflectivedisc independent rebound and compression. 18mm centerlessground, casehardened, chromed, and superpolished rod. Backed by Rough Countrys Limited Lifetime Replacement Warranty.