KYB 3450026 Suspension Shock Absorber - Rear

KYB Excel-G Rear Shock Absorber

KYB Excel-G 3450026 is a rear suspension shock absorber built to restore original ride control on compatible heavy-duty trucks. It is a nitrogen gas-charged, twin-tube design made on KYB OE assembly lines with OE-quality components for factory-style handling and stability.

Compatible with 2020-2024 Chevrolet Silverado 3500 HD rear and 2020-2024 GMC Sierra 3500 HD rear, this KYB Excel-G shock is a direct-fit OE-style replacement for drivers and technicians looking to return suspension performance to designed specifications.

Key Features

• Part number 3450026
• Excel-G line calibrated to restore original suspension response
• Nitrogen gas-charged, twin-tube construction
• Built on KYB OE assembly lines using OE-quality components
• Rear shock absorber for heavy-duty truck applications
• Dust cover included
• Lower mount type: E2 (14.6x42)
• Upper mount type: E2 (14.6x42)
• Compressed length: 13.78 in; extended length: 22.4 in; stroke length: 8.62 in

Product Details

The KYB Excel-G product line focuses on restoring factory ride control rather than changing suspension character. For Silverado 3500 HD and Sierra 3500 HD rear applications, KYB 3450026 is engineered to match original designed performance, helping maintain predictable handling, lane-change response, and braking stability. This part cross-references Monroe Shocks & Struts 84582987 for the same application.

What It Helps Address

• Excessive rear bounce after bumps
• Reduced stability during lane changes
• Loose or unsettled rear suspension feel
• Longer stopping distance caused by worn damping
• Uneven ride control from a fatigued shock absorber

Installation Notes and Tips

Verify rear fitment by year, make, and model before installation. Confirm the E2 upper and lower mount dimensions match the vehicle mounting points, and compare compressed and extended lengths to the original shock. Replace shocks in axle pairs when wear is similar side to side, and inspect related suspension bushings and mounts during service.

Quality Assurance

KYB is a major OE shock and strut supplier, and Excel-G is produced on the same KYB OE assembly lines with OE-quality components. The OEA classification reflects its role as an original-equipment-style aftermarket replacement for restoring designed suspension performance.