moog-st8547 | Front Coil Spring and Strut Assembly | Chevrolet Impala

  • moog-st8547 Front Coil Spring and Strut Assembly

Front Coil Spring and Strut Assembly

Manufacturer: MOOG
Part Number: moog-st8547
Price: $97.37

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  • Moog fulfills their warranty through their individual dealers. That means that in order to receive warranty support, you will have to refer back to the original dealer you purchased the part from. Be sure to check the dealer's warranty support before you buy the part to make sure that they will properly support the warranty. If a dealer will only refer you back to the manufacturer in order to receive warranty support, then you may not actually have any warranty at all.

    WARRANTY:

    Moog Premium Steering Components carry a Limited Lifetime Warranty. Moog R-Series Control Arms, Hub Assemblies, and Strut Assemblies carry a 3 Year Warranty.

    Moog warranties their parts to be free of defects in materials and/or workmanship during these timeframes as measured from the date of purchase.

    If a Moog part should fail due to materials or manufacturing defect while under warranty, we will provide a replacement of the part upon return of the defective part.

FitmentFront Coil Spring and Strut Assembly moog-st8547 fits these vehicles:
Details

moog-st8547 | Front Coil Spring and Strut Assembly | Chevrolet Impala

  • Does not fit 2010 Buick Allure with Performance Package.
  • Does not fit 2005-2009 Buick LaCrosse models with the 17 inch or 18 inch wheels.
  • Does not fit 2000-2013 Chevrolet Impala with 15 inch or 16 inch wheels.
  • Does not fit 2000-2013 Chevrolet Impala Police or Taxi models.
  • For 2000-2013 Chevrolet Impala Police or Taxi models use st8558 instead.
  • Fits 2000-2007 Chevrolet Monte Carlo with 15 inch or 16 inch wheels only.

Moog's Coil Springs

Designed to be more than OE replacements, Moog's coil springs come with a variety of shapes and ends. This selection, combined with Moog's lifetime warranty handled right here at DST, lends security to whichever choice you might make. While they are certainly higher quality than the OE springs, each of Moog's coil springs were designed to still have the same spring rate. Having the same spring rate allows for an easier install and a more accurate restoration for your vehicle's ride.

End Type

Coil Springs have three types of ends: Square, Tangential and Pigtail. It is important that you select a coil spring that matches BOTH your end types, otherwise the coil spring won't fit. Your OE coil spring could have the same type ends, or a combination of both.

Moog Universal Coil Springs Squared

Type 1: Squared

With a Squared end, the final coil is bent back to touch the coil before it. The easiest way to know if you have a squared end is to stand the coil spring straight up. A squared end will let the spring sit flat on the ground and stay standing.

Type 2: Tangential

A Tangential end looks like it would just keep on going forever if the spring continued. The last coil is not bent back and it is not the pigtail (see below). Instead, the tangential coil spring looks as though a normal coil was just cut, otherwise, it would have kept winding on forever. If you tried to stand it up straight, it would fall.

Moog Universal Coil Springs Squared
Moog Universal Coil Springs Squared

Type 3: Pigtail

The Pigtail is probably the easiest to identify. Its defining characteristic is the pig tail shape at the end. The final coil is squared off, but is a much smaller diameter than the rest of the spring.

Spring Type

Moog offers two types of springs for a universal fitment: Constant Rate and Variable Rate.

Constant Rate

Moog Constant Rate coil springs return your vehicle to the original specifications. The rate at which the spring compresses and rebounds remains constant regardless of the amount of load on the spring. These coil springs are heat treated, have a weather resistant finish and use a urethane protective tube.

Moog Universal Coil Springs Bar Diameter
Moog Universal Coil Springs Bar Diameter

Variable Rate

Moog Variable Rate coil springs can be used as an original replacement or an upgrade to carry heavier loads. The resistance changes as the spring compresses, becoming progressively stiffer as the load on the springs increase. The springs include a "comfort range" with tightly spaced coils to give a smooth ride, and include a "load range" with widely spaced coils to minimize deflection and maintain chassis height when the vehicle load increases.

MOOG moog-st8547

Product Reviews for moog-st8547 | Front Coil Spring and Strut Assembly | Chevrolet Impala

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MOOG moog-st8547

5 out of 5 based on 5 user reviews. Write a Review

T
verified_user

starstarstarstarstar" Review 1 Year Later No problems "

Still goin strong!

verified_user Verified Buyer - - . MOOG moog-st8547 - 5 out of 5
M
verified_user

starstarstarstarstar" Review 1 Year Later "

Replaced the originals with Moog. Everything and more that was expected.

verified_user Verified Buyer - - . MOOG moog-st8547 - 5 out of 5
T
verified_user

starstarstarstarstar" Review 1 Year Later No problems "

Still goin strong!

verified_user Verified Buyer - - . MOOG moog-st8547 - 5 out of 5
M
verified_user

starstarstarstarstar" Review 1 Year Later "

Replaced the originals with Moog. Everything and more that was expected.

verified_user Verified Buyer - - . MOOG moog-st8547 - 5 out of 5

Fitment for moog-st8547
MakeModelYear RangePositionDrive WheelQuantity RequiredEngine BaseEngine VINEngine Designation
BuickAllure2010-2005Front Quantity 2
BuickCentury2005-1997Front Quantity 2
BuickLaCrosse2009-2005Front Quantity 2
BuickRegal2004-1997Front Quantity 2
ChevroletImpala2013-2000Front Quantity 2
ChevroletMonte Carlo2007-2000Front Quantity 2
PontiacGrand Prix2003-1997Front Quantity 2

question_answer Customer Questions and Answers


Question:
Will part number moog-st8547 fit a 2004 Chevy Impala SS with 17 inch wheels?
Answer:
No, part number st8547 will only work with the 15 inch or 16 inch wheels on the 2004 Chevy Impala SS.

Question:
I purchased the front and rear strut and coil assemblies for my 2001 grand prix this summer. after about the first 1,000 miles, the fronts developed a loud squeak when there is enough up/down movement. Not really during higher speeds, but during slow speeds. Do you happen to know what the squeak could be from and how to fix it?
Answer:
It would be impossible to advise you where the noise is coming from without driving and doing a through steering/suspension inspection. You would need to take your vehicle into a mechanic to do the steering/suspension inspection.