Restore the designed ride control, stability, and handling of your full-size GM truck or SUV with the KYB Excel-G Suspension Shock Absorber 344263, a nitrogen gas-charged, twin-tube shock. It installs as a direct-fit REAR replacement for the 1988-1999 Chevrolet C1500 and K1500, 1988-2000 Chevrolet C2500/C3500 and K2500/K3500, 1991-2002 Chevrolet C3500HD, 1992-1994 Chevrolet Blazer, 1995-1999 Chevrolet Tahoe, 1999-2000 Cadillac Escalade, the 1988-1999 GMC C1500 and K1500, 1988-2000 GMC C2500/C3500 and K2500/K3500, 1991-2002 GMC C3500HD, 2003-2005 GMC Savana 3500, and 1992-1997 GMC Yukon — see the Buyer's Guide tab for the full list and engine details.
- OE-calibrated performance: Built on KYB's OE assembly lines with OE-quality components and calibrated to restore original designed performance, earning its OEA (Original Equipment for the Aftermarket) classification.
- Vehicle-specific damping: Hand-assembled, vehicle-specific damping valves manage tire contact, steering response, and body movement.
- Supports safety systems: Designed to help keep electronic safety systems performing as the vehicle manufacturer intended.
- Triple-lip seal: A triple-lip fluid seal reduces the chance of oil and gas leaking out.
Sold individually; replace both sides of the axle together as a matched pair for balanced ride control.
Interchange: G63488 · 22064830 · 22064831 · 37044
This part cross-references / interchanges with the following part numbers:
Frequently Asked Questions
What is the KYB Excel-G 344263?
It's a nitrogen gas-charged, twin-tube rear suspension shock absorber calibrated to restore the vehicle's original designed ride control, stability, and handling.
Which vehicles does this shock fit?
It's a direct-fit rear replacement for full-size GM trucks and SUVs including Chevrolet C/K 1500-3500, Blazer, Tahoe, Cadillac Escalade, and GMC C/K, Savana 3500, and Yukon. See the Buyer's Guide tab for the full list.
Do I need to replace both shocks at once?
Shocks are sold individually. Replacing both sides of the axle together as a matched pair is recommended for balanced, even ride control.
What does the OEA classification mean?
OEA stands for Original Equipment for the Aftermarket. The Excel-G is built on KYB's OE assembly lines with OE-quality components to restore original performance rather than change it.
What are signs my rear shocks may need replacing?
Common signs include excessive body movement, reduced stability, a bouncy ride, or fluid leakage. Have the suspension inspected to confirm the shocks are the cause before replacing.
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