These replacement upper ball joints are just what you need to ensure the safety and integrity of your vehicle's suspension and steering.

Specifications:

  • Comes as a PAIR
    • Fits both LH (Driver Side) & RH (Passenger Side) FRONT UPPER
  • Replaces dealer part number: 22157320
  • Direct replacements
  • Built to strict quality control standards

Worn ball joints can cause excessive front tire wear, popping or creaking in the front end, extra play in the steering system, and pose a serious safety concern. Replace loose or worn ball joints with our quality replacement.

One way to diagnose a loose, or warn ball joint, is to jack the car up, so the wheel is off of the ground, then have someone try to move the wheel in and out. While they are moving the wheel check the ball joint for play, if it is moving you probably need to replace it.

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

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. Please keep your invoice for proof of this warranty.

  1. step : Removing the Wheel (0:46)
    • Pry off the center cap with a flat blade screwdriver
    • Loosen the lug nuts with the vehicle on the ground
    • Raise the vehicle with a floor jack
    • Secure the vehicle on jack stands
    • Remove the lug nuts
    • Pull off the wheel
  2. step : Removing the Ball Joint (1:11)
    • Separate the axle from its housing with a pry bar and a hammer
    • Unclip the brake line from its clips
    • Remove the ball joint retaining ring with a hammer and punch
    • Remove two 10mm bolts from the steering knuckle bracket
    • Apply penetrating oil to the control arm nut and bolt
    • Remove the 15mm nut and bolt from the control arm
    • Strike the control arm with a hammer to loosen it
    • Pull the steering knuckle forward
    • Support the wheel knuckle with wire ties
    • Cut off the ball joint boot with a razor
    • Fit a ball joint press to the ball joint
    • Tighten the press to press out the ball joint
    • Remove the ball joint press
    • Tap out the ball joint with a hammer
  3. step : Installing the New Ball Joint (4:22)
    • Push the new ball joint into place
    • Fit the ball joint press onto the ball joint
    • Tighten the ball joint press to press in the ball joint
    • Tap the ball joint in with a hammer
    • Tap the snap ring into place with a hammer and punch
    • If you are replacing the snap ring, put the new ring on with snap ring pliers
    • Push the steering knuckle into place
    • Push the control arm onto the ball joint
    • Tap the control arm onto the ball joint with a hammer
    • Start the 15mm nut and bolt into the control arm
    • Remove the wire ties from the steering knuckle
    • Push the axle into its housing
    • Tighten the 15mm nut to 50 foot-pounds of torque
    • Fasten the grease fitting onto the ball joint with a 10mm wrench
    • Add grease to the ball joint with a grease gun
    • Insert the two 10mm bolts into the steering knuckle bracket
    • Clip the brake line into place
  4. step : Reattaching the Wheel (7:00)
    • Slide the wheel into place
    • Start the lug nuts by hand
    • Tighten the lug nuts preliminarily
    • Lower the vehicle to the ground
    • Tighten the lug nuts to 100 foot-pounds in a crossing or star pattern
    • Reattach the center cap

Tools needed for replacement:

    General Tools

  • Floor Jack
  • Jack Stands
  • Hammer
  • Razor Blade / Gasket Scraper

  • Materials, Fluids, and Supplies

  • Rust Penetrant
  • Bearing Grease
  • Wire Ties

  • Pliers, Cutters & misc Wrenches

  • Wire Cutters

  • Ratchets & Related

  • Ratchet
  • Torque Wrench

  • Screwdrivers & Related

  • Flat Blade Screwdriver
  • Pry Bar

  • Sockets - Metric

  • 15mm Socket
  • 19mm Socket
  • 10mm Socket

  • Specialty Tools

  • Ball Joint Press
  • Grease Gun

  • Wrenches - Metric

  • 15mm Wrench
  • 10mm Wrench

5.0 / 5.0
2 Reviews
5 Stars
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2002 GMC Envoy Ball Joints
Good quality parts with a lifetime warranty at a fair and reasonable price. Quick and easy shipping arrived in 3 days. Parts went in quick and easy. No problems with the parts or shipping. Would recommend these to any one doing a job like this!
January 29, 2018
Purchased
5 months ago
Upper ball joints
Ball joints fit as they should. I don't think you could beat it for the money
July 5, 2017
Purchased
1 year ago
Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 1 question Browse 1 question and 3 answers
should this be pressed in with the boot in place or without and install the boot after?
andy m. on Oct 3, 2016
BEST ANSWER: Keep the boots on there is no problem with boots interfering with the install if done correctly. the ball joints are some what all ready greased. removal of the boot would cause contamination to the grease that's all ready in the joints

Vehicle Fit

  • 2004-2007 Buick Rainier Front Upper Ball Joint Pair
  • 2002-2009 Chevy Trailblazer Front Upper Ball Joint Pair
  • 2003-2005 Chevy Trailblazer EXT Front Upper Ball Joint Pair
  • 2002-2009 GMC Envoy Front Upper Ball Joint Pair
  • 2003-2004 GMC Envoy XL Front Upper Ball Joint Pair
  • 2003-2008 Isuzu Ascender Front Upper Ball Joint Pair
  • 2002-2004 Olds Bravada Front Upper Ball Joint Pair
  • 2005-2009 Saab 9-7X Front Upper Ball Joint Pair

This part replaces:

  • Moog K6664
  • OE # 22157320
Part #: 1ASFK00729

How-to Video:

(07:51 min)