KYB KG5546 Suspension Shock Absorber - Rear

KYB Gas-a-Just Rear Shock Absorber

The KYB Gas-a-just KG5546 is a monotube rear shock absorber built for Chrysler and Dodge applications that need firmer control than a conventional twin-tube design. It uses separate gas and hydraulic chambers to deliver quick response, consistent damping, and reduced fade during demanding driving.

Compatible with rear suspension service on Chrysler Fifth Avenue, Imperial, New Yorker, Town & Country, LeBaron, Newport, and Dodge Aspen, Magnum, Charger, and Monaco applications, the KG5546 is a direct-fit performance upgrade for vehicles that work, tow, or run larger wheels and tires.

Key Features

• Monotube design with separate gas and oil chambers for consistent damping
• Up to 25% more damping performance than original equipment shocks
• High-pressure nitrogen gas helps maintain response and reduce fade
• Triple chrome plated piston rod helps reduce seal wear and fluid leakage
• Improved steering response from higher gas pressure and quicker shock reaction
• Dust cover included
• Engineered for Chrysler and Dodge rear suspension applications

Product Details

Gas-a-Just is KYB’s performance-oriented shock line for drivers who want more control without changing the basic suspension layout. The KG5546 uses a monotube construction that separates the gas charge from the hydraulic fluid, which helps the shock react quickly and stay consistent under load. That design is especially relevant for Chrysler Fifth Avenue and Dodge Charger rear suspension service where added damping can improve body control, ride stability, and braking feel.

This part number, KG5546, cross-references Monroe Shocks & Struts 5837 and Gabriel 69703 for the same application. It is a strong option when replacing worn rear shocks on 1976-1989 Chrysler and Dodge vehicles listed in the fitment data.

Common Problems It Can Address

• Excessive rear-end bounce after bumps
• Reduced control during towing or hauling
• Shock fade from heat and aeration
• Loose steering feel and delayed response
• Uneven ride quality from worn rear dampers

Installation Notes and Tips

Fits 1983-1989 Chrysler Fifth Avenue, rear; 1981-1983 Chrysler Imperial, rear; 1979-1982 Chrysler New Yorker, rear; 1979-1982 Chrysler Town & Country, rear; 1977-1981 Chrysler LeBaron, rear; 1979-1981 Chrysler Newport, rear; 1976-1980 Dodge Aspen, rear; 1978-1979 Dodge Magnum, rear; 1977-1978 Dodge Charger, rear; and 1977-1978 Dodge Monaco, rear. Notes include exclusions for air suspension on select Chrysler models and police package exclusions on Dodge Monaco applications.

Verify compressed length, extended length, stroke length, and mount style before installation. The KG5546 uses lower mount type S1 and upper mount type E2 (12.8 x 41.3). Confirm the vehicle’s suspension configuration matches the listed fitment, especially on Chrysler Fifth Avenue and Dodge Charger rear applications.

Quality Assurance

KYB designs Gas-a-Just shocks with monotube construction, high-pressure gas separation, and valving tuned for Chrysler and Dodge rear suspension needs. The triple chrome plated piston rod and fade-resistant design support consistent operation in demanding service conditions.