KYB KG5477 Shock Absorber - Front

KYB Gas-a-just Front Shock Absorber

The KYB Gas-a-just KG5477 is a monotube front shock absorber built as an OE-style replacement for GM trucks and SUVs that need firmer control than a standard twin-tube design. It uses separate hydraulic and gas chambers to deliver responsive damping, stable ride control, and quick reaction when load, towing, or larger tires increase suspension demand.

Key Features

• Monotube design with separate gas and oil chambers for consistent damping and fast response
• Up to 25% more damping performance than original equipment shocks
• High-pressure nitrogen gas helps reduce fade during repeated suspension movement
• Triple chrome plated piston rod helps reduce seal wear and fluid leakage
• Valving and components are tuned for GM truck applications
• Dust cover included for added protection
• Front position shock absorber with OE-style mounting dimensions

Detailed Description

KYB Gas-a-just KG5477 is designed for drivers who want restored front-end control on Chevrolet Blazer, GMC Jimmy, Chevrolet K10, GMC K1500, and related GM truck platforms. The monotube construction separates the gas and hydraulic oil so the shock can react quickly and maintain damping consistency under demanding conditions. That makes it a practical choice for front suspension service on vehicles used for towing, hauling, or running heavier wheels and tires. This part cross-references Monroe Shocks & Struts 37040 for the same application.

The Gas-a-just line is KYB’s performance-oriented OE replacement series, and KG5477 follows that approach with application-specific valving for GM trucks. It is a front shock absorber with E2 upper and lower mounts, compressed length of 13.23 inches, extended length of 20.91 inches, and 7.68 inches of stroke. KYB KG5477 is also listed as a replacement for Gabriel G63906.

What It Helps Address

• Excessive front-end bounce after bumps or dips
• Reduced steering response from worn shock absorbers
• Fade in damping performance during repeated suspension movement
• Front suspension instability on trucks with heavier tires and wheels
• Ride control loss on GM vehicles used for towing or work duty

Installation Notes and Tips

• Fits 1985-1991 Chevrolet Blazer, front; 1985-1986 Chevrolet K5 Blazer, front; and 1987-1991 Chevrolet Blazer, front with dual front shocks and inside shock configuration.
• Fits 1985-1986 Chevrolet K10, front; 1985-1986 Chevrolet K20, front; 1987 Chevrolet V10, front; and 1987 Chevrolet V20, front with dual front shocks and inside shock configuration.
• Fits 1985-1986 GMC K1500, front; 1985-1986 GMC K2500, front; 1987 GMC V1500, front; and 1987 GMC V2500, front with dual front shocks and inside shock configuration.
• Fits 1985-1986 Chevrolet K10 Suburban, front; 1985-1986 Chevrolet K20 Suburban, front; 1987-1988 Chevrolet V10 Suburban, front; 1987-1988 Chevrolet V20 Suburban, front; 1987-1991 Chevrolet V1500 Suburban, front; and 1989-1991 Chevrolet V2500 Suburban, front with dual front shocks and inside shock configuration.
• Fits 1985-1986 GMC K1500 Suburban, front; 1985-1986 GMC K2500 Suburban, front; 1987-1990 GMC V1500 Suburban, front; and 1987-1991 GMC V2500 Suburban, front with dual front shocks and inside shock configuration.

Quality Assurance

KYB designs the Gas-a-just line as an OE monotube replacement to restore original suspension capability while improving damping response. The high-pressure monotube layout, chrome piston rod, and application-specific valving are engineered to support consistent front suspension performance on GM truck and SUV platforms.