1ASFK02550-Suspension Kit 6 Piece Set


Suspension Kit 6 Piece Set TRQ PSA56315


Part Details

  • Kit Includes: (2) Front Lower Ball Joints
  • Kit Includes: (2) Front Upper Control Arms
  • Kit Includes: (2) Front Upper Ball Joints
  • Quantity: 6 Piece Set

This part replaces:

  • Dorman 520-143
  • Dorman 520-144
  • Hollander 511-01054R
  • Hollander 511-01055L
  • Moog K6663
  • Moog K6664
  • Moog K640293
  • Moog K640294
  • OE # 8191336700
  • OE # 19133670
  • OE # 22157319
  • OE # 25786774
  • OE # 25786775
  • OE # 15858683
  • OE # 22157320
  • OE # 15858682
Save 23%
List: $135.95 Save: $31.00
Part 1ASFK02550
In Stock

Orders must be placed by 2pm ET
Delivery options for:

Estimated Arrival Cost

Deliveries made to PO Boxes and FPO may take longer. See our Shipping & Delivery for more information.

Brand #: PSA56315
Vehicle Fit
Warranty & Shipping
How-To & Tools

Part Details

  • Quantity:   6 Piece Set
  • Kit Includes:
      (2) Front Lower Ball Joints
      (2) Front Upper Control Arms
      (2) Front Upper Ball Joints


  • Brand New Suspension Kit
  • Comes as a 6 Piece Kit
    • Fits LH (Driver Side) & RH (Passenger Side)
  • Direct replacements
  • Built to strict quality control standards

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.

Item Condition: New

Attention California Customers:

WARNING:  This product can expose you to chemicals including Chromium (Hexavalent Compounds), which is known to the State of California to cause cancer, and birth defects or other reproductive harm.  For more information, go to www.P65Warnings.ca.gov.

Lifetime Warranty

This item is backed by our limited lifetime warranty. In the event this item should fail due to manufacturing defects during intended use, we will replace the part free of charge. This warranty covers the cost of the part only.

  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

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Fits the following Makes:

Year Make Model Description
2004-2007Buick Rainier Buick Rainier Suspension Kit 6 Piece Set
2002-2009Chevrolet Trailblazer Chevrolet Trailblazer Suspension Kit 6 Piece Set
2002-2006Chevrolet Trailblazer EXT Chevrolet Trailblazer EXT Suspension Kit 6 Piece Set
2002-2009GMC Envoy GMC Envoy Suspension Kit 6 Piece Set
2003-2006GMC Envoy XL GMC Envoy XL Suspension Kit 6 Piece Set
2003-2008Isuzu Ascender Isuzu Ascender Suspension Kit 6 Piece Set
2002-2004Oldsmobile Bravada Olds Bravada Suspension Kit 6 Piece Set
2005-2009Saab 9-7X Saab 9-7X Suspension Kit 6 Piece Set

Part Interchange

Brand Label Part Number
ACDelco 45D1210
ACDelco 45D1211
Centric Parts 623.66819
Centric Parts 623.6682
Centric Parts 622.66819
Centric Parts 622.6682
DIY Solutions SUS05049
DIY Solutions SUS05050
DIY Solutions SUS00185
DIY Solutions SUS00148
Dorman 520-144
Dorman 520-143
Dorman - OE Solutions 520-143
Dorman - OE Solutions 520-144
Dorman OE Solutions 520-143
Dorman OE Solutions 520-144
Falcon Steering Systems FCA711
Falcon Steering Systems FCA710
General Motors 25786775
General Motors 15077244
General Motors 15080913
General Motors 15158963
General Motors 15080914
General Motors 15858682
General Motors 15858683
General Motors 15298272
General Motors 15298273
General Motors 15158962
General Motors 25786774
General Motors 15077245
General Motors 22157320
General Motors 19133670
General Motors 22157319
General Motors OEM 15077245
General Motors OEM 15158962
General Motors OEM 15298273
General Motors OEM 25786775
General Motors OEM 15858682
General Motors OEM 15158963
General Motors OEM 15298272
General Motors OEM 25786774
General Motors OEM 15858683
General Motors OEM 15077244
General Motors OEM 15080913
General Motors OEM 15080914
Ingalls Engineering CAK640294
Ingalls Engineering CAK640293
Isuzu 8257867750
Isuzu 15858682
Isuzu 15858683
Isuzu 8158586830
Isuzu 8158586820
Isuzu 8257867740
MAS Industries CA90338
MAS Industries CA90338PR
MAS Industries CA90337PR
MAS Industries CA90337
MOOG RK640293
MOOG K6663
MOOG CK640293
MOOG K640293
MOOG K640294
MOOG RK640294
MOOG CK640294
MOOG K6664
MOOG Chassis Products RK640294
MOOG Chassis Products CK640294
MOOG Chassis Products K6664
MOOG Chassis Products K6663
MOOG Chassis Products K640293
MOOG Chassis Products RK640293
MOOG Chassis Products CK640293
MOOG Chassis Products K640294
MasterPro 3CB50437
MasterPro 3CB50436
Mcquay-Norris FA4947
Mcquay-Norris FA4946
Mevotech CMS50104
Mevotech GS50104
Mevotech GS50105
Mevotech MS50104
Mevotech MS50105
Mevotech CMS50105
NAPA 260-5936
NAPA 260-5937
NAPA Premium 2605936
NAPA Premium 2605937
Precision Driveline CB50058
Precision Driveline 3CB50058
Precision Driveline 3CB50059
Precision Driveline CB50059
Raybestos Chassis 502-1208
Raybestos Chassis 502-1209
SYD 15077244R
SYD 15077245L

This item may be interchangeable with parts from other brands with the above part numbers. This information is provided only for reference and does not guarantee that the item you are purchasing is identical to parts with part numbers from the brands listed above. To confirm that this item fits your vehicle, use the above "Check Vehicle Fit" option.

Brand #: PSA56315
Product Reviews
4.25/ 5.0
4 reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
First time buyer at 1aauto
Amazingly affordable and all in one kit. Didnt have to look what matches my car just year/make/model Free fast delivery 2-3 days. I installed my parts on the car fit was just like OEM I will be back for more parts for sure. Also check out there YouTube videos. !!!!
August 4, 2017
Control Arms did not fit
I ordered this Kit to save money. All the pieces fit perfectly and are working great. The only problem is that the 2 Control Arms that came in the kit did not fit. Initially I thought it was just me not being able to fit the part in, so I struggled with it for a while until I realized it was the wrong size. By then, I had already broke the seal on the one.
August 13, 2017
Enjoying a smooth ride again!
The parts that I order for my 2007 Trailblazer were an exact fit, and immediately gave my SUV its original smooth ride again without the noise. 1 Auto sales quality and reliable parts at a very competitive price. I will definitely recommend them to my family and friends. Thank You 1A, Victor Jackson
September 20, 2017
very good service the parts all the time what they are and time very well thank you 1A
March 24, 2020
Customer service


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Saturday - Sunday 8:00am - 4:30pm ET

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