KYB 344438 Shock Absorber - Rear

KYB Excel-G Rear Shock for Buick Rendezvous

KYB Excel-G shock absorber 344438 is a rear suspension replacement for the 2002-2007 Buick Rendezvous, excluding models with the automatic rear air leveling system. Built to restore original ride control, it supports stable braking, lane change response, and predictable handling on the Buick Rendezvous rear suspension.

The Excel-G line is KYB’s OE-style replacement range, assembled on KYB production lines with OE-quality components and calibrated to return the vehicle to its original damping characteristics rather than alter them. Part number 344438 is a nitrogen gas-charged, twin-tube rear shock absorber with a dust cover included.

Key Features

• Fits 2002-2007 Buick Rendezvous, rear
• Recommended OEM replacement for SUVs and crossovers
• Vehicle-specific damping valves manage tire contact, steering response, and body movement
• Triple-lip fluid seal helps reduce oil and gas leakage
• Strong strut body and bracket design helps limit flex and maintain alignment
• Dust cover included for added protection
• Part number 344438 for easy identification

Product Details

KYB Excel-G 344438 is engineered for drivers replacing worn rear shocks on the Buick Rendezvous. It uses a twin-tube, nitrogen gas-charged design with OE-style calibration to restore the vehicle’s original ride control and suspension response. The rear shock’s compressed length is 10.23 inches, extended length is 15.74 inches, and stroke length is 5.51 inches. Mounting dimensions are E2(14.6x34) at the lower mount and E2(12x57.7) at the upper mount.

This part cross-references Monroe Shocks & Struts 39052 for the same application.

Common Problems It Can Address

• Excessive bouncing after bumps
• Rear-end instability during braking or cornering
• Reduced tire contact on uneven roads
• Delayed body control during lane changes
• Uneven or inconsistent rear suspension response

Installation Notes and Tips

Verify rear fitment before installation: this part is for 2002-2007 Buick Rendezvous rear applications without the automatic rear air leveling system. Compare the mount style and dimensions to the original shock absorber before removal. Inspect related suspension components, including bushings and mounting points, so the new shock can operate correctly.

For best results, replace worn shocks in matched axle pairs and confirm alignment after suspension service if wear or ride-height changes are present.

Quality Assurance

KYB is a major OE shock and strut supplier, and the Excel-G line is built on the same production lines used for original-equipment components. Part number 344438 is designed to restore factory-style performance for the Buick Rendezvous rear suspension while maintaining the control characteristics expected from an OE replacement.