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KYB KG5551 Gas-a-Just Gas Shock

Free shipping on orders over $29.99

$35.32

$ 16 .99 $16.99

In Stock

About this item

  • Adds up to 25% more damping performance over original equipment shocks
  • Components and valving designed specifically for classic Ford cars
  • High gas pressure design provides instant, extra control
  • monotube design outperforms all other standard shock absorbers
  • Unique, air-free, hydraulic unit eliminates performance fade


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.


Optimus Prime Member
Reviewed in Canada on March 13, 2025
It fit good but I can’t comment on the longevity of it since my car only gets 5-6000km a year
Victor Flores
Reviewed in Mexico on April 27, 2025
Todo ok
Earl D. Oliver
Reviewed in the United States on September 13, 2024
I've used KYB for years and have had good success with them.
Mitch
Reviewed in the United States on October 13, 2024
Shopping for rear shocks with an OEM or better quality ride. These fit the bill for sure. Price and quality was better than those AZ and AA offered. Very pleased thus far.
Customer
Reviewed in Canada on May 30, 2021
I bought this for my lowered 97 mustang. Fits perfect! Works well
Michael
Reviewed in the United States on October 10, 2021
The shocks I put them on my 86 mustang GT good for the money but a little stiff
P-M
Reviewed in Mexico on March 11, 2020
Excelente amortiguador, firmes, muy firmes, quedaron perfecto en mi Mustang GT 94 con resortes Eibach PRO, si tienes un Mustang SN bajado, estos amortiguadores de Foxbody son una excelente opcion para recuperar el buen manejo. No recomendados si se quiere un manejo suave, tipo marquis.
Trent R
Reviewed in the United States on September 1, 2019
Feels good. Was hoping for a little stiffer to eliminate possible tire rub but that’s a personal problem.
the waterboy
Reviewed in the United States on August 9, 2019
KYB is a well known brand. These should last longer than the car. The gas pressure is pretty strong, I couldn't compress them without both hands pushing them down. In that case you have to move the axle up and down to line up the bolt hole at the bottom end. The only negative was the top grommets are not as beefy as the originals. I re-used the originals as they isolate the shock mount from the body in a better fashion.
Jeremy Gibbs
Reviewed in the United States on March 21, 2018
My 93 Mustang drives like a brand new car now! You can't go wrong with these, great quality, inexpensive, an unbeatable value! I will buy these again in future.
Robbie C.
Reviewed in the United States on April 30, 2017
Bought these to replace a set of 14yr old KYB shocks. They returned a normal ride back to my lowered Mustang and I would highly recommend them as a decent upgrade over the stock shocks.
007-700
Reviewed in the United States on January 11, 2015
I installed these onto my 91 Mustang GT convertible today. The ride before I put these on was super stiff to the point where hitting bumps would be bone jarring. I found out that it had the old stock shocks on there after 135k miles. I installed these KYB on there today and the ride is completely restored. I couldn't be happier.
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