KYB 565077 Shock Absorber - Rear

KYB MonoMax Rear Shock for GM Trucks

The KYB MonoMax 565077 is a heavy-duty rear shock absorber built for GM trucks that need added control under load, on rough roads, or during towing. Its monotube construction and large-bore design support stable damping for 1999-2006 Chevrolet Silverado 1500 and GMC Sierra 1500 applications, plus 2007 Silverado 1500 Classic and Sierra 1500 Classic lift-replacement setups.

Key Features

• Up to 40% more damping performance than standard shock absorbers
• Monotube truck shock design for consistent handling and control
• Zinc-coated stainless steel piston ring for sealing in severe conditions
• Rubber dust boot included to help protect the shaft and seals
• Engineered to work with vehicles equipped with electronic safety systems such as ESC and ABS
• Rear fitment for lifted GM truck applications with the listed suspension notes

Product Details

KYB MonoMax is the brand’s heavy-duty shock line for trucks that see demanding use. The 565077 uses a monotube layout to maintain fade-resistant performance and responsive damping when the vehicle is carrying weight or traveling over uneven surfaces. With a compressed length of 17.91 inches, extended length of 28.54 inches, and 10.63 inches of stroke, this rear shock is sized for the listed GM truck fitments and lift-replacement applications. The KYB MonoMax 565077 is a practical upgrade for Chevrolet Silverado 1500 and GMC Sierra 1500 owners who want firmer rear suspension control without changing the vehicle’s basic setup.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Address

• Rear-end bounce after hauling cargo
• Excessive body movement while towing a trailer
• Reduced control on rough pavement or off-road surfaces
• Shock fade during repeated heavy-duty use
• Suspension instability on lifted GM truck applications

Installation Notes and Fitment

Compatible With 1999-2006 Chevrolet Silverado 1500, rear, except Quadrasteer; lift replacement shocks; lift = 2-3; except electronic suspension. Compatible With 1999-2006 GMC Sierra 1500, rear, lift replacement shocks; except electronic and Quadrasteer suspension; lift = 2-3. Compatible With 2007 Chevrolet Silverado 1500 Classic, rear, except Quadrasteer; lift replacement shocks; except electronic suspension; lift = 2-3. Compatible With 2007 GMC Sierra 1500 Classic, rear, lift replacement shocks; except electronic suspension; lift = 2-4.

Verify the rear mounting style before installation: upper and lower mounts are E2 (14.6 x 41). Confirm lift height, suspension equipment, and clearance around the dust boot before final assembly. Part number 565077 is intended for the listed rear applications only.

Quality Assurance

KYB designs the MonoMax line for truck-duty suspension control, using a zinc-coated steel piston ring and monotube construction to support durability in demanding conditions. The dust boot is included to help protect exposed shock components from dirt and debris.