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SIERRA 1500 PICKUP
- aluminum (knuckle)
  - Driver Side
  - Passenger Side
- casting iron (knuckle)
  - (stamped steel lower control arm)
    - Driver Side
    - Passenger Side
SIERRA DENALI 1500
- (casting iron knuckle)
  - Driver Side
  - Passenger Side

Spindle Assembly for 2018 GMC Sierra 1500 HD

Fits: SIERRA 1500 PICKUP casting iron knuckle stamped steel lower control arm Passenger Side (change)

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