This Fits Your 2018 GMC Sierra 2500 HD 6.6L Duramax V8 DIESEL A/T RWD Base Extended Cab Pickup Fleetside
Full size assembly image of REAR SUSPENSION. AXLE COMPONENTS. BRAKE COMPONENTS. STABILIZER BAR & COMPONENTS. SUSPENSION COMPONENTS. (1/1)

REAR SUSPENSION. AXLE COMPONENTS. BRAKE COMPONENTS. STABILIZER BAR & COMPONENTS. SUSPENSION COMPONENTS.

1/2 ton. 2WD. 3/4 ton W/10. 5" ring gear. 3/4 ton W/9. 5" ring gear. 4WD. 7200 gvwr. 8. 5" ring gear. 8600 gvwr. 9. 5" gear. ALL. Front. Inner. Leaf spring. Outer.