KYB KG5511 Shock Absorber - Rear

KYB Gas-a-just Rear Shock for Dodge Dart

The KYB Gas-a-just KG5511 is a monotube suspension shock absorber built for classic Dodge Dart rear applications. It uses separate gas and oil chambers for quick response, consistent damping, and reduced fade during repeated suspension movement.

For 1963-1976 Dodge Dart rear suspension service, this KYB Gas-a-just shock is engineered to add control without sacrificing normal ride comfort. The KG5511 is a direct-fit option for drivers restoring handling on a classic Mopar platform.

Key Features

• Monotube design separates gas and oil for fade-free operation and fast response
• Adds up to 25% more damping performance over original equipment shocks
• Valving and components are designed specifically for classic Mopars
• Higher gas pressure improves steering response and suspension control
• Triple chrome plated piston rod helps reduce seal wear and fluid leakage
• Dust cover included
• Compatible with vehicles that work, tow, or run larger, heavier tires and wheels

Detailed Description

The KYB Gas-a-just line is built around a high-pressure monotube layout that keeps the working gas and hydraulic fluid separated. That design supports immediate damping response and helps maintain consistent performance under load. On the KG5511, KYB applies this approach to classic Dodge Dart rear suspension tuning, with valving intended for the demands of older Mopar chassis. The result is a rear shock absorber that supports sharper control, steadier ride behavior, and more predictable handling on the road.

This part cross-references Monroe Shocks & Struts (e.g., 31131) for the same application. Part number KG5511 is also referenced by Gabriel 82131 in the same fitment family.

What It Helps Address

• Excessive rear-end bounce over bumps and dips
• Reduced damping control from worn original shocks
• Fluid leakage related to seal wear
• Delayed steering and chassis response during driving transitions
• Fade from repeated suspension cycling

Installation Notes and Tips

Compatible With 1963-1976 Dodge Dart, rear. Replace the suspension strut and coil spring assembly according to the manufacturer’s instructions. Verify compressed length, extended length, stroke length, and mount style before installation to confirm proper suspension travel and fitment. The KG5511 uses E1L/E(17.5) lower and upper mount types.

For best results on a classic Dodge Dart rear suspension, inspect related mounting points and surrounding wear items before installing the new shock absorber. Confirm that the vehicle’s suspension components are assembled per factory procedure.

Quality Assurance

KYB is known for OE-focused suspension engineering, and the Gas-a-just line uses a monotube construction with high-pressure nitrogen gas for consistent damping response. The KG5511 is built to support stable operation in classic Mopar rear applications while helping maintain the suspension behavior the vehicle was designed around.