1. Product Overview
The ACDelco GM Original Equipment Shock Absorber Kit is designed to absorb and dampen road input into your vehicle’s suspension system. This helps maintain proper feel and control of your vehicle. These shock absorbers are GM-recommended replacements, manufactured to meet the performance, durability, and service life standards expected from General Motors original components.

Image: ACDelco GM Original Equipment 580-354 Rear Shock Absorber Kit, showing the shock absorber and mounting hardware.
2. Key Features
- Road Input Absorption: Helps absorb and dampen road input into your vehicle’s suspension for improved ride quality.
- Complete Kit: Includes necessary parts to service your vehicle’s shocks, facilitating a comprehensive replacement.
- GM-Recommended: A direct GM-recommended replacement part for your GM vehicle’s original factory component.
- Quality and Durability: Offers the quality, reliability, and durability characteristic of GM Original Equipment.
- OE Specification: Manufactured to GM Original Equipment specifications for precise fit, form, and function.
3. Installation Guidelines
Installation of shock absorbers should ideally be performed by a qualified technician. However, for those with mechanical experience, these units are designed for straightforward replacement. Always refer to your vehicle's specific service manual for detailed instructions and safety precautions.
- Preparation: Ensure the vehicle is safely lifted and supported on jack stands. Remove the wheel to access the shock absorber.
- Removal of Old Shock: Carefully unbolt and remove the existing shock absorber. Note the orientation of all components.
- Installation of New Shock: Position the new ACDelco 580-354 shock absorber. Secure it using the provided new hardware. Ensure all bolts are torqued to the manufacturer's specifications.
- Final Checks: Reinstall the wheel and lower the vehicle. Verify proper seating and function before driving.

Image: A shock absorber placed on a workbench alongside various tools, indicating readiness for installation or maintenance.
4. Operation and Function
The ACDelco GM Original Equipment 580-354 Rear Shock Absorber is a critical component of your vehicle's suspension system. Its primary function is to control the motion of the vehicle's springs and suspension, preventing excessive bouncing and oscillations. By converting kinetic energy into heat, the shock absorber dampens vibrations caused by road irregularities, ensuring a smooth and stable ride, improved tire contact with the road, and enhanced vehicle control, especially during braking and cornering.

Image: A detailed cutaway diagram of a shock absorber, highlighting internal components such as the chrome-finished piston rod and drawn-over mandrel (DOM) pressure cylinder, illustrating how it dampens motion.
5. Maintenance Tips
Regular inspection of your vehicle's suspension components, including shock absorbers, is crucial for maintaining ride comfort and preventing wear on other parts. It is recommended to inspect your vehicle’s shocks annually. Always consult your vehicle Owner’s Manual for additional maintenance practices.
What to Check (by a Qualified Technician):
- Leaks: Inspect for leaking oil or wetness along the body of the shock.
- Mounts: Check for broken or damaged mounts.
- Hardware: Verify that mounting hardware is not broken, damaged, or missing.
- Reservoir Tube: Look for any dents in the reservoir tube.
- Piston Rod: Examine the piston rod for bends or scratches.
- Tire Wear: Observe for cupped tire wear, which can indicate shock issues.
- Spring Seat/Spring: Check for any damage to the spring seat or spring itself.
6. Frequently Asked Questions
- Q: Is there a difference between a shock and a strut?
- A: Yes. While both perform similar functions, a strut is a structural part of the vehicle’s suspension system and often integrates the spring, whereas a shock is not. A strut also plays a crucial role in the vehicle’s steering system and affects alignment angles.
- Q: Should I have my vehicle aligned after replacing my shocks or struts?
- A: It is recommended to have your vehicle aligned after replacing struts. However, it is generally not necessary to align your vehicle when replacing only shocks, unless there was a pre-existing alignment issue.
- Q: Do I need different shocks or struts for front, rear, left, or right applications?
- A: Yes. It is important to select the correct shock or strut specifically designed for your vehicle model, year, and the intended location (front, rear, left, or right) within the vehicle.
7. Specifications
| Specification | Detail |
|---|---|
| Brand | ACDelco |
| Model Number | 580-354 |
| Auto Part Position | Rear |
| Vehicle Service Type | GM vehicles |
| Material | Metal |
| Item Weight | 10 pounds |
| Product Dimensions | 32.75 x 4.25 x 4.25 inches |
| OEM Part Number | 12476113 |
| UPC | 707773521793 |
8. Warranty and Support
ACDelco GM Original Equipment parts are backed by General Motors, ensuring they meet stringent quality and performance standards. For specific warranty details and support, please refer to the official ACDelco or General Motors warranty documentation provided with your vehicle or product, or contact an authorized ACDelco service center.

Image: Branding for GM Genuine Parts and ACDelco, emphasizing their commitment to quality suspension products designed and tested to rigorous GM standards.

Image: A collection of GM Genuine Parts and ACDelco automotive components, including brake pads, rotors, and a ball joint, symbolizing the comprehensive range of quality parts available.





