Our steering and suspension components come pre-greased, sealed for long life, and do not require the extra maintenance typically required by greasable versions.

Direct Fit

Application-specific, with no modifications required.

Rigorously Tested

Made from higher quality materials than the competition. Built to have a longer life in any environment or road conditions.

State of the Art Manufacturing

By the same factories that the OEMs use.

Prepackaged for Your Convenience

Carefully assembled to include all of the parts you need, saving time and money.

Part Details

  • Kit Includes: (2) Front Lower Control Arms with Ball Joints
  • Quantity: 4 Piece Set
  • Kit Includes: (2) Front Upper Ball Joints

Lifetime Warranty

This item is backed by a Limited Lifetime Warranty. In the event this item should fail due to manufacturing defects during intended use, we will exchange the part free of charge (excludes shipping charges) for the original purchaser.

    NOTE: If you do not have air-powered tools, remove the lug nuts with the vehicle on the ground

  1. step : Removing the Wheel (0:58)
    • Spray the torsion bar bolt with spray paint
    • Loosen the lug nuts
    • Pry off the center cap with a flat blade screwdriver
    • Loosen the 35mm nut but do not remove it
    • Remove the lug nuts
  2. step : Removing the Stabilizer Link (1:59)
    • Loosen the torsion bar bolt to loosen tension
    • Loosen the 24mm nut from the ball joint
    • Loosen the 24mm nut and the 22mm control arm bolt
    • Remove the nut but keep the bolt in place
    • Using locking pliers to clip onto the top of the stabilizer link
    • Then remove the 14mm bolt from bottom of the stabilizer link
    • Jack up lower control arm to release pressure from the shock
    • Remove the 21mm shock bolt
    • Put the jack underneath the bolt loosened on the lower control arm
    • Hammer the side to release the steering knuckle
    • Jack up underneath the lower control arm and remove the nut
    • Remove the 35mm nut and washer the rest of the way with air-powered tools
    • Remove the stabilizer link with a hammer or reciprocating saw
  3. NOTE: If you do not have air-powered tools, use a second person to apply the brakes when removing the 35mm nut

  4. step : Removing the Axle (5:00)
    • Remove the 15mm bolts around the axle
    • Using a pry bar on the hub to hold the axle in place, remove the 15mm bolts on the axle
    • Hammer the axle over to the side to break it free
    • Pull the axle straight out of the wheel, and pull it down and out
  5. step : Removing the Control Arm (5:50)
    • Push the shock out of the lower control arm
    • Jack up the lower control arm until the steering knuckle falls free
    • Lift up the wheel knuckle, let the jack fall, and pull it out
    • Remove the two bolts left on the back of the lower control arm
    • Lift up the wheel knuckle to pull the control arm down
  6. step : Reinstalling the Control Arm (7:14)
    • Put the control arm onto the torsion bar
    • Replace both bolts
    • Use a jack to support the control arm
    • Place the stud or ball joint into the steering knuckle and let the jack down
    • Place the jack underneath the steering knuckle
    • Tighten the 24mm bolt onto the ball joint
  7. step : Reinstalling the Axle (9:00)
    • Feed the axle back into place
    • Line up the back
    • Replace the 15mm bolts
    • Using the pry bar to hold the hub, torque the bolts to 65ft/lbs
  8. step : Replacing the Stabilizer Link (10:14)
    • Put the stabilizer piece back into place
    • Use four washers, four grommets, and a tube
    • Use a jack stand to help push it through till it appears through the top
    • Tighten up the 18mm tension bar bolt
    • Replace the 21mm shock bolt
    • Jack the control arm and torque 24mm and 22mm control arm bolts
    • Torque the control arm bolts so they're in the riding position
    • Tighten the 14mm bolt on the stabilizer link
  9. step : Replacing the Wheel (12:40)
    • Replace and tighten the 35mm center hub nut
    • Replace and tighten each lug nut
    • Torque each lug nut in a crossing pattern to 100 ft/lbs
    • Torque the center hub nut to 160 ft/lbs
    • Replace the dust and hub cap

Tools needed for replacement:

    General Tools

  • Jack Stands
  • Sawzall
  • Hammer

  • Materials, Fluids, and Supplies

  • Spray Paint

  • Pliers, Cutters & misc Wrenches

  • Vise Grip Pliers

  • Ratchets & Related

  • Socket Extensions
  • Ratchet
  • Torque Wrench

  • Screwdrivers & Related

  • Pry Bar

  • Sockets - Metric

  • 35mm Socket
  • 24mm Socket
  • 14mm Socket
  • 22mm Socket
  • 15mm Socket
  • 21mm Socket
  • 18mm Socket

  • Wrenches - Metric

  • 21mm wrench

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Vehicle Fit

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  • 2003-2006 Cadillac Escalade ESV 4 Piece Set Suspension Kit
  • 2002-2006 Cadillac Escalade EXT 4 Piece Set Suspension Kit
  • 2002-2006 Chevy Avalanche 1500 4 Piece Set Suspension Kit
  • 2003-2008 Chevy Express 1500 Van All Wheel Drive 4 Piece Set Suspension Kit
  • 2003-2005 Chevy Express 2500 Van All Wheel Drive 4 Piece Set Suspension Kit
  • 1999-2006 Chevy Silverado 1500 4 Wheel Drive 4 Piece Set Suspension Kit
  • 2004-2006 Chevy Silverado 1500 2 Wheel Drive 4 Piece Set Suspension Kit for Models with Front Torsion Bar Suspension
  • 2007 Chevy Silverado 1500 Classic 4 Wheel Drive 4 Piece Set Suspension Kit
  • 2007 Chevy Silverado 1500 Classic 2 Wheel Drive 4 Piece Set Suspension Kit for Models with Front Torsion Bar Suspension
  • 2000-2006 Chevy Suburban 1500 4 Piece Set Suspension Kit
  • 2000 Chevy Tahoe (excluding Z71 Models) 4 Piece Set Suspension Kit
  • 2001-2006 Chevy Tahoe 4 Piece Set Suspension Kit
  • 2003-2008 GMC Savana 1500 Van All Wheel Drive 4 Piece Set Suspension Kit
  • 2003-2005 GMC Savana 2500 Van All Wheel Drive 4 Piece Set Suspension Kit
  • 1999-2006 GMC Sierra 1500 4 Wheel Drive 4 Piece Set Suspension Kit
  • 2004-2006 GMC Sierra 1500 2 Wheel Drive 4 Piece Set Suspension Kit for Models with Front Torsion Bar Suspension
  • 2007 GMC Sierra 1500 Classic 4 Wheel Drive 4 Piece Set Suspension Kit
  • 2007 GMC Sierra 1500 Classic 2 Wheel Drive 4 Piece Set Suspension Kit for Models with Front Torsion Bar Suspension
  • 2000 GMC Yukon (excluding Denali Models) 4 Piece Set Suspension Kit
  • 2001-2006 GMC Yukon 4 Piece Set Suspension Kit
  • 2000-2006 GMC Yukon XL 1500 4 Piece Set Suspension Kit

This part replaces:

  • Moog K6540
  • Moog K620381
  • Moog K620380
  • Dorman 520-127
  • Dorman 520-128
  • Hollander 512-01212L
  • Hollander 512-01211R
  • OE # 12475486
  • OE # 12475479
  • OE # 12475480
Part #: 1ASFK05390

How-to Video:

(14:06 min)