KYB KG4550 Gas-A-Just Front/Rear Shock for Classic Cars 1955-1985

Regular price: $59.95
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Sale price: $59.95

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In Stock: 96

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Product Specification:

SKU:KYBKG4550

MPN: KG4550

UPC: 781552045502

Weight: 2.5 lb

Inventory: 96

Type: Shocks and Struts

Vehicle Fitment

Front or Rear Gas-A-Just shock for these classic vehicles:
1955-1964 Chevrolet Bel Air RWD (all trims)
1955-1957 Chevrolet Bel Air Nomad (wagon)
1958-1964 Chevrolet Biscayne RWD
1960-1964 Chevrolet Corvair (all trims)
1959-1964 Chevrolet Impala RWD
1963-1982 Chevrolet Corvette (various years)
1961-1962 Pontiac Bonneville RWD
1958-1962 Pontiac Catalina RWD
1965-1985 Avanti II
1967-1974 Volvo 142/144/145/164 series

Features

KYB Gas-A-Just high-pressure monotube shock for classic performance
Instant automatic response to road conditions and load changes
More damping control than standard twin-tube shocks
Gas-charged design resists aeration and shock fade
Improved steering response and reduced body roll
Durable triple-chrome plated piston rod for long service life
Direct OE-style replacement - bolt-on fit
Sold individually - pair installation recommended

Specifications

Brand: KYB Gas-A-Just
Part Number: KG4550
Position: Front or Rear (driver or passenger side)
Design: High-pressure monotube gas shock
Compressed Length: ~9.25 in
Extended Length: ~13.54 in
Stroke Length: ~4.29 in
Upper Mount Type: Single stud
Lower Mount Type: Cross pin/loop eyelet style
Gas Charged: Yes, for consistent damping
Adjustment: Non-adjustable

Included Components

1x KYB KG4550 Gas-A-Just Monotube Shock Absorber

Product Description

The KYB KG4550 Gas-A-Just Shock Absorber is a performance-oriented monotube shock designed for classic American and European cars built roughly from the mid-1950s through the mid-1980s. Featuring KYB's advanced Gas-A-Just technology, this shock utilizes high-pressure nitrogen gas to maintain consistent damping performance under a variety of road conditions and loads. Compared with traditional twin-tube shocks, the Gas-A-Just design resists aeration and boost, improves steering response, and reduces body roll for a more controlled ride.

Sold individually and engineered as a direct replacement for original monotube shocks on models such as Chevrolet Bel Air, Impala, Biscayne, Corvair, Corvette, Pontiac Bonneville/Catalina, Avanti II, and select classic Volvo models, the KG4550 offers a balanced combination of comfort and performance. Its durable construction, triple-chrome piston rod, and monotube design help enhance stability and control on both daily drives and spirited runs. When replacing shocks, it's recommended to install units in pairs to maintain balanced handling across the vehicle. Always confirm specific fitment with your vehicle's model year and suspension type before installation.