Factory Control Arm

Important:  GM is producing several knuckle/control arm configurations in 2014-2018 models trucks. Cast Steel control arm-equipped models will require the "Cast Steel Control Arm" kit. Stamped Steel and Aluminum control arm-equipped models will require the "Aluminum Control Arm" kit. Be sure to verify which factory control arms your truck has before ordering.

Note: This selection is just for reference purposes, no product is added.


GMC 1500 Stamped Steel UCA (BDS44445)-Upper Control Arms-BDS-BDS44445-Dirty Diesel Customs

Stamped Steel Upper Control Arm


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GMC 1500 Aluminum UCA (BDS44446)-Upper Control Arms-BDS-BDS44446-Dirty Diesel Customs

Aluminum Upper Control Arm


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GMC 1500 Cast Steel UCA (BDS44447)-Upper Control Arms-BDS-BDS44447-Dirty Diesel Customs

Cast Steel Upper Control Arm


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Front Box Kit (1 of 2)

8" Front Box Kit

This Box Kit includes the following products:

  • Front & Rear Crossmember
  • Driver & Passenger Side Differential Drop Bracket
  • Center Diff Support - Assembly
  • Center Diff Support Bracket
  • 2 Bushings
  • 4 Differential Mount Spacers
  • Bolt Pack - Differential Brackets

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Front Box Kit (2 of 2)

8" Front Box Kit

This Box Kit includes the following products:

  • Driver & Passenger Side Skid Plate
  • Skid Plate - Front
  • Sway Bar Spacer
  • Driveshaft Boot Extension
  • O-Ring 42mm ID
  • O-Ring Dash Number 322
  • Bag Kit - Front Components
  • CV Spacer Washer
  • Drive Shaft Boot Clamp
  • 1/4” Spacer Washer - Skid Plate
  • Weld-in Plate
  • Driver & Passenger Front Brake Line Bracke
  • 7 Cable Ties
  • Loctite
  • Bag Kit - Sway Bar Links
  • .625 x .083 x 5.0 Sleeve
  • 8 Small Stem Bushings
  • 8 Stem Washers
  • 3/8-16 x 9" Bolt
  • Bolt Pack - ABS/Skid Plate
  •  Bolt Pack - Sway Bar Drop
  • Bolt Pack - Strut Spacer
  • Bolt Pack - LCA Bolts

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Driver Side Knuckle


Driver's Side Knuckle


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Passenger Side Knuckle


Passenger's Side Knuckle

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Strut Spacer Box Kit


8" Strut Spacer Box Kit

This Box Kit includes the following products:

  • 2 Strut Spacers
  • Bolt Pack - Strut Spacer
  • 2 Strut Name Plates
  • 2 BDS Logo Badges
  • 1 Rivet Bolt Pack

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Rear Lift


8" Rear Box Kit

This Box Kit includes the following products:

  • 2 6” Lift Blocks
  • 2 Rear Add-a-Leaf
  • 4 9/16” x 2-9/16” x 14” square U-Bolts
  • U-Bolt Plates
  • Rear Bag Kit
  • 4 3/8” x 4.5” Pin & Nut
  • 4 2.5” Spring Clamps
  • Brake Line Bracket
  • 8 9/16 Fine High Nuts- Black
  • 8 9/16 SAE Flat Washers-Black

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Rear Shocks