KYB KG5416 Shock Absorber - Rear

KYB Gas-a-just Rear Shock Absorber KG5416

The KYB Gas-a-just KG5416 is a monotube rear shock absorber built for OE-style replacement on select GM trucks and SUVs. It uses separate hydraulic and high-pressure gas chambers to deliver responsive damping, stable control, and a more consistent ride under load.

For drivers of classic Chevrolet Blazer, C10 Suburban, C20 Suburban, GMC Jimmy, and GMC G1000 Series applications, this rear shock is tuned for vehicles that work, tow, or run larger tires and wheels. The KG5416 is designed to restore suspension control without changing the original mounting style.

Key Features

• Monotube shock absorber with separate gas and oil chambers for fade-resistant operation
• Up to 25% more damping performance than original equipment shocks
• Higher gas pressure improves steering response and overall control
• Triple chrome plated piston rod helps reduce seal wear and fluid leakage
• Designed specifically for GM truck applications
• Dust cover included
• Upper and lower mount type: E2 (12.8 x 35)

Product Details

The KYB Gas-a-just line is KYB’s monotube performance-oriented OE replacement series. The KG5416 uses an air-free hydraulic working area for quick response, plus a high-pressure nitrogen gas section with a floating piston to maintain consistent damping. That design helps the shock react immediately when load, road input, or vehicle motion changes. This part number, KG5416, is a direct-fit rear suspension shock absorber for select 1964-1972 GM rear applications.

This part cross-references Monroe Shocks & Struts 37040 for the same application.

What It Helps Address

• Excessive rear-end bounce over uneven pavement
• Reduced control when towing or carrying heavier loads
• Soft or delayed shock response from worn OE dampers
• Fluid leakage from aging shock seals
• Steering and handling inconsistency caused by weak rear damping

Installation Notes

Compatible With 1969-1972 Chevrolet Blazer, rear; 1967-1972 Chevrolet C10 Suburban, rear; 1967-1972 Chevrolet C20 Suburban, rear; 1970-1972 GMC Jimmy, rear; and 1964-1966 GMC G1000 Series, rear. Follow the manufacturer’s instructions for suspension strut and coil spring assembly replacement where noted. Verify compressed length, extended length, and mount style before installation. The KG5416 uses E2 upper and lower mounts and is intended for rear-position applications only.

Quality Assurance

KYB engineers the Gas-a-just line as an OE monotube replacement to restore original suspension capability with consistent damping control. The KG5416 is built for stable performance in GM truck and SUV rear suspension applications, including vehicles that see work-duty use and heavier wheel and tire setups.