To ensure the vehicle performs safely and as designed, we recommend replacing shocks & struts in pairs. If the damping rates are significantly different from side to side (like using different brand parts or mixing old with new) the vehicle body and wheel movement variations could cause handling irregularities. We also recommend performing an alignment after replacement. This will ensure proper tracking and protect your vehicle's tires from premature wear.

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 (0:38)
    • Loosen the lug nut covers with a 19mm socket
    • 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 Sway Bar Link (1:03)
    • Place a 14mm wrench to hold the back
    • Remove the nut with an 18mm socket
    • Remove the sway bar link
  3. step : Installing the New Sway Bar Link (1:41)
    • Push the sway bar link into place
    • Replace and tighten the 18mm nuts
  4. step : Reattaching the Wheel (2:03)
    • 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
    • Tighten the lug nut covers with a 19mm socket

Tools needed for replacement:

    General Tools

  • Floor Jack
  • Jack Stands

  • Ratchets & Related

  • Torque Wrench
  • Ratchet

  • Sockets - Metric

  • 18mm Socket
  • 19mm Socket

  • Wrenches - Metric

  • 14mm Wrench

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How-to Video:

(03:09 min)

Tools List:

    General Tools

  • Floor Jack
  • Jack Stands

  • Ratchets & Related

  • Torque Wrench
  • Ratchet

  • Sockets - Metric

  • 18mm Socket
  • 19mm Socket

  • Wrenches - Metric

  • 14mm Wrench



This part replaces:

  • KYB SR4089

Vehicle Fit

  • 2005-2009 Buick Allure Rear Strut & Spring Assembly Passenger Side for Models with 17 Inch Wheels
  • 2005-2009 Buick LaCrosse Rear Strut & Spring Assembly Passenger Side for Models with 17 Inch Wheels
  • 2004-2014 Chevy Impala Rear Strut & Spring Assembly Passenger Side for Models with 17 Inch Wheels
  • 2014 Chevy Impala Limited Rear Strut & Spring Assembly Passenger Side for Models with 17 Inch Wheels
  • 2004-2007 Chevy Monte Carlo Rear Strut & Spring Assembly Passenger Side for Models with 17 Inch Wheels
  • 2004-2008 Pontiac Grand Prix Rear Strut & Spring Assembly Passenger Side for Models with 17 Inch Wheels
Part #: 1ASTS01413

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Customer Feedback

"Thanks for the fast reliable service. Great price, and the headlights were as good as oem or better!!! Keep up the good work..."
- Dwuan M.
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