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Vehicle Fit

Part Details

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


  • Brand New Suspension Kit
  • Comes as a Set of 4
    • Fits LH (Driver Side) & RH (Passenger Side)
  • Direct replacement
  • 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

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.

  1. step : Remove the Wheel (1:59)
    • Pull off the center cap
    • Loosen the lug nuts
    • Remove the cotter pin and loosen the 35mm hub nut
    • Loosen the seven 13mm 12-point bolts that hold the axle to the front drive
    • Raise and secure the car
    • Remove the wheel
  2. step : Loosen the Torsion Bar (2:54)
    • Spray the torsion bar with spray paint and loosen the torsion bar tension bolt with an 18mm bolt
  3. step : Remove the Tie Rod (3:45)
    • Use a pair of pliers to remove the cotter pin
    • Remove the nut at the end of the tie rod
    • Use a tie rod puller to separate the tie rod
  4. step : Remove the stabilizer links (5:25)
    • Use a 9/16 wrench to secure the bottom and a 14 mm socket to unbolt the stabilizer link
    • Use a hammer and punch to remove the stabilizer link
  5. step : Pull the Axle from the CV Joint (6:52)
    • Unbolt the seven bolts, using a pry bar to keep the hub from rotating
    • Remove the hub nut using a 35 mm socket
    • Give the axle a tap with a hammer and pull the axle out
  6. step : Remove the Ball Joint (9:00)
    • Use a jack and wood plank or two to lift the control arm and relieve tension from the ball joint
    • Unbolt the the ball joint using a breaker bar and 27mm socket
    • Use a ball joint removal tool to pull the ball joint apart
    • With a ball joint press, remove the ball joint completely
    • See Part Two for reassembly

Tools needed for replacement:

    General Tools

  • Center Punch
  • Floor Jack
  • Hammer
  • Jack Stands

  • Materials, Fluids, and Supplies

  • Block of Wood
  • Marker / Writing Utensil
  • Rust Penetrant

  • Pliers, Cutters & misc Wrenches

  • Needle nose pliers

  • Ratchets & Related

  • 1/2 Inch Breaker Bar
  • A Piece of Pipe (for leverage)
  • Ratchet
  • Socket Extensions

  • Screwdrivers & Related

  • Pry Bar

  • Sockets - Metric

  • Complete Metric Socket Set

  • Specialty Tools

  • Ball Joint Press
  • Tie Rod Puller

4.25/ 5.0
4 reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
1a auto fixes their mistakes
I ordered this set of upper control arms and lower ball joint. When I received the package 1A auto sent me two of the driver side upper control arms. Although inconvenienced, I called and spoke to a very helpful customer service specialist. I say specialist because 1A auto had superb customer support. I gave 4 stars because it was a significant inconvenience, but was rectified immediately and I received the part in 2 days. Will most certainly be doing business again with 1A auto for their awesome customer service and willingness to rectify a bad situation. Thank you 1A auto!
March 14, 2016
I ordered a set of control arms for my 2005 Murcury Mountaineer and it was imperative I had to ASAP. A1 made it possible that I had them expeditiously. They are my go to guys whenever I order parts for my vehicles.
March 22, 2017
Great parts at a great price
Couldnt be more satisfied. Shipped fast. Correct fit. Low price. I saved hundreds of dollars.
July 24, 2017
Worked great
I found out when I got an assignment that there is a new washer they use that hive it extra room for the alignment that didnt come with the part so I would check into that first to save you some time
July 27, 2017
Will this fit my car? Add a vehicle to make sure
Customer Q&A
Ask a question to 1A Auto customers who purchased the product
How many and location of grease fittings?
Bob B March 8, 2016
None. Pre-greased and sealed from the factory.
Brian F March 8, 2016
Do the lower ball joints have grease zerks to service?
Omar U December 24, 2016
no, these are pre-greased and sealed from the factory
Brian F December 24, 2016
Will this fit 2004 4 door explorer xlt 4.0 ?
Tyler W May 10, 2017
Yes, these will fit.
Alex P May 10, 2017
Will this fit a 2005 ford explorer eddie Bauer v6?
Donnell H August 26, 2017
These will fit any 2005 Ford Explorer 4 door, non-Sport Trac models!
Tim K September 3, 2017
Year Make Model Description
2002-2005Ford Explorer Ford Explorer 4 Door 4 Piece Set Suspension Kit
2003-2005Lincoln Aviator Lincoln Aviator 4 Piece Set Suspension Kit
2002-2005Mercury Mountaineer Mercury Mountaineer 4 Piece Set Suspension Kit
Part #: 1ASFK02085

Order must be placed by 4pm ET

Get it in: 2 - 4 Business Days

Want it sooner? Choose Next Day Air at Checkout

How-to Video:

(13:53 min)