Description
Comparison points and tradeoffs
When comparing KYB KG4503 Gas-a-Just Gas Shock with other Shocks & Struts options, use this source-backed detail as the primary discriminator: The Gas-a-Just is available as an OE monotube replacement and as an OE twin-tube performance upgrade.
Use this second fact to evaluate the tradeoff: Category: Performance Parts & Accessories / Shocks, Struts & Suspension / Shocks & Struts. A third point to compare across alternatives is: Adds up to 25% more damping performance over original equipment shocks.
Alternative-selection boundary
Choose an alternative when its stated identifiers, application, package, or specifications better match the requirement; no unverified competitor claim is introduced here.
Complete source-backed product details
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.
Source product highlights
About this item
- Adds up to 25% more damping performance over original equipment shocks
- Components and valving designed specifically for classic muscle 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
D Hauke –
fit fine on my AMX
Bill –
Good shocks. Stiffer than OE. Great for a heavy car. They lifted the front of my ‘61 TBird slightly.
Glitterbug –
These do not fit a ’55 Mercury, sent back with authorization, awaiting refund.
Dad of All Trades –
This is a perfect fit for the 1954 Hudson Hornet. Installed without any modifications. Since I’m doing other work & the car is not driveable I’ll update when I do drive it. Assuming Amazon allows the review to be updated.I can say that compared to the Monroe shocks it replaced these appear to be a much higher quality shock. Why? 1) they have a full steel cover for the rod unlike Monroe, which protects from damage to the rod & subsequent internal seals. 2) they included 2 nuts for each mounting point, thus preventing an unexpected loosening of the one nut at each mounting point the Monroe’s came with. Additionally I used the KYB app to check the compressed & extended lengths as well as listed applications & cross referencing of other shock numbers. Definitely a very good app.The only down side is the instructions are a weird array of photos & no written words.
Scott C. –
No problems installing. Improved ride quality a lot.