Gas Shock
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KYB Gas Shock

Part No. KG4521 Warranty Details  

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The KYB Gas-a-Just monotube shock absorber has additional performance advantages over the traditional twin-tube design: It can instantly, automatically adjust to your performance needs and never experiences fade due to aeration. The Gas-a-Just is available as an OE monotube replacement and as an OE twin-tube performance upgrade.The KYB Gas-a-Just has two separate working chambers: An air-free hydraulic piston and valve area for responsiveness & control, and a second high-pressure nitrogen gas area with a floating piston that provides a comfortable ride during normal driving and adds instant performance on demand.

Product Features:
  • Adds up to 25% more damping performance over original equipment shocks
  • Vehicle specific components and valving
  • High gas pressure design provides instant, extra control
  • Monotube design outperforms all other standard shock absorbers
  • Unique, air-free, hydraulic unit eliminates performance fade
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Adjustable:No
Body Diameter:39.2 mm
Body End Type:See Upper mount/Lower mount
Body Material:Steel
Boot Included:No
Bushing Color:Black
Bushing Material:Rubber
Coil Over Springs Included:No
Compressed Length:10.55 in
Diameter:39.2 mm
Dust Shield:Yes
Extended Length:16.26 in
Gas Charged:Yes
Internal Design:Monotube
Lower Mount Type:E2(12x32)
Material:Performance montube
Mounting Brackets Included:No
Mounting Hardware Included:Yes
Shock Type:Performance Monotube
Valving Selection Quantity:0

REVIEW SNAPSHOT®

by PowerReviews
KYBGas Shock
 
4.5

(based on 2 reviews)

Ratings Distribution

  • 5 Stars

     

    (1)

  • 4 Stars

     

    (1)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

Reviewed by 2 customers

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(1 of 4 customers found this review helpful)

 
4.0

Nice Handling 'Stang

By 

from Cape Coral,Fl

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Verified Buyer
3 or more reviews submitted

Pros

  • Comfortable Ride
  • Improves Handling

Cons

    Best Uses

    • Everyday Driving
    • Performance Driving
    • Replacement

    Comments about KYB Gas Shock:

    Improved the ride

    • Car & Truck:
    • Auto Enthusiast

    Comment on this reviewHelp Icon

    (2 of 3 customers found this review helpful)

     
    5.0

    Adds Stability

    By 

    from Olney Md

    Verified Buyer

    Pros

    • Comfortable Ride
    • Improves Handling
    • Improves Launching

    Cons

      Best Uses

      • Everyday Driving
      • Performance Driving
      • Replacement

      Comments about KYB Gas Shock:

      Great replacement for OEM don't forget to install the spacers.

      • Car & Truck:
      • Auto Enthusiast

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      Do you have questions about this product?

       

      Ask a question, get answers from real customers and in-house experts. For further assistance, please review your support options on our Contact Us page.

      3 Questions | 7 Answers
      Displaying questions 1-3
      • Q:

        i have a 2001 cobra mustang with independent rear suspension not quad shock so will this shock workk for me?
        Asked on 2/24/2014 by kiko from fort myers fl

        1 answer

        • CUSTOMER CARE

          A:

          Hi kiko, good question! Upon research I found that this gas shock is a recommended O.E replacement for rear quad shock on 2001 Ford Mustang Cobra. Currently, I am unable to locate a gas shock for your vehicle with independent rear suspension online. However, if you could please visit the nearest Advance Auto Parts store one of our Parts Pros will gladly assist you.

          Answered on 2/25/2014 by Vincent from AAP
      • Q:

        on 98 mustang...is there any special tools needed for this replacement? It says gas-a just so I wasnt sure what that meant?
        Asked on 4/6/2011 by A1 from Roanoke,VA

        1 answer

        • CUSTOMER CARE

          A:

          For step by step instructions I recommend that you go to your nearest Advance Auto Parts store and purchase a repair manual.

          Answered on 4/6/2011 by David the Dynamite Parts Guy from AAP
      • Q:

        is this the shock that sits horizontially in the rear of the vehicle.
        Asked on 8/4/2010 by kevin from ia

        5 answers

        • CUSTOMER CARE

          A:

          For further assistance please provide the vehicle's year, make, model, and engine size.

          Answered on 8/4/2010 by Kevin from AAP
        • A:

          your talking about the "quad shock"

          Answered on 8/16/2010 by buk from chiggerland, tr
        • A:

          yes this is the quad shock on a 87 to 93 mustang gt and i think on a 5.0 lx models to. it controls the side movement of the rear end to eleminate basicly wheel hop.

          Answered on 9/6/2010 by will employee advance auto parts from ohio
        • VERIFIED BUYER

          A:

          Yes it is when installing don't forget the spacers

          Answered on 8/23/2010 by Lastsho from Olney Md
        • A:

          Hi Kevin,

          Yes it is. What it is actually called and I quote directly from the 1990 Ford Mustang Car Shop Manual is "Axle Damper" and they work hydraulically to dampen out the rotational forces during power applications such as acceleration, braking, and side to side movements,by smoothing them out.

          Answered on 8/31/2012 by Larry from Chicago
      Displaying questions 1-3

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