Provencher 2.0 Cylinder Shocks for GMC Sierra and Silverado

Provencher shocks for GMC Sierra Silverado 1500 from 2007 - 2018, used with clean usage history including invoices, 3 of them serviced at the dealership, mostly stored and rarely used. Quantity: 4 shock absorbers and 4 external cylinders. Size: 2.0 inches with aluminum cylinder and heat dissipater, features fast absorption and high comfort in city driving and off-road conditions. 8-level rebound force adjustment to control shock firmness. Ability to adjust front suspension height in four levels. Rod thickness: 20 mm. Rebuildable and serviceable. Easy installation (installed without any modifications to the vehicle).