KYB 344483 Shock Absorber - Rear

KYB Excel-G Rear Shock for GM Vans

KYB Excel-G shock absorber 344483 is a rear suspension replacement for select Chevrolet Express 3500 and GMC Savana 3500 vans with lowered rear leaf suspension, plus earlier Express 1500 and Savana 1500 applications listed below. Built to restore original ride control and handling, this nitrogen gas-charged twin-tube shock uses OE-quality components and vehicle-specific damping calibration.

Key Features

• KYB recommended OEM replacement shock for rear suspension service
• Restores designed control, stability, stopping response, lane change response, and handling
• Triple-lip fluid seal helps reduce oil and gas leakage
• Hand-assembled, vehicle-specific damping valves manage tire contact, steering response, and body movement
• Strong strut body and bracket construction helps minimize flex and maintain alignment
• Dust cover included
• Part number: 344483

Product Details

The KYB Excel-G line is built on the same KYB OE assembly lines used for original equipment supply and is calibrated to return the vehicle to its intended performance rather than change the ride character. For GM van owners looking for a rear shock absorber for a Chevrolet Express 3500 or GMC Savana 3500 with lowered rear leaf suspension, Excel-G 344483 provides an OE-style replacement focused on control, consistency, and suspension response. This part cross-references Monroe Shocks & Struts 37085 for the same application.

What This Shock Absorber Helps Address

• Excessive rear bounce or oscillation
• Reduced stability during braking and lane changes
• Uneven tire contact caused by worn damping
• Loose or unsettled rear suspension feel
• Loss of original ride control in GM van applications

Installation Notes and Fitment

• Fits 2019-2025 Chevrolet Express 3500, rear, w/ Lowered Rear Leaf Suspension; Excel-G
• Fits 2019-2025 GMC Savana 3500, rear, w/ Lowered Rear Leaf Suspension; Excel-G
• Fits 2006-2018 Chevrolet Express 3500, rear, Recommended OEM Replacement; w/ Lowered Rear Leaf Suspension; Excel-G
• Fits 2006-2018 GMC Savana 3500, rear, Recommended OEM Replacement; w/ Lowered Rear Leaf Suspension; Excel-G
• Fits 2003-2014 Chevrolet Express 1500, rear, Replace suspension strut and coil spring assembly according to manufacturer's instructions.; Excel-G
• Fits 2003-2014 GMC Savana 1500, rear, Replace suspension strut and coil spring assembly according to manufacturer's instructions.; Excel-G

Verify compressed length 13.5, extended length 21.85, stroke length 8.35, lower mount type E2(14.6X41), and upper mount type E3(61.6X87X0) before installation. Follow factory service procedures and inspect related suspension components for wear during replacement.

Quality Assurance

KYB is a major OE shock and strut supplier, and Excel-G is produced with OE-quality components on KYB assembly lines to support original equipment-style performance. The nitrogen gas-charged, twin-tube design and triple-lip seal are used to help maintain consistent damping and reduce leakage risk over time.