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Monroe 58551 Shock Absorber and Coil Spring Assembly - Rear
Monroe Load Adjusting Shock Absorber 58551 Overview
The Monroe Load Adjusting Shock Absorber part number 58551 is designed specifically for Chevrolet Camaro and Pontiac Firebird models. This suspension shock absorber and coil spring assembly offers precise load handling and improved ride control for these vehicles.
- Compressed length: 12.125 inches
- Extended length: 20.375 inches
- Travel length: 8.25 inches
- Metal dust shield included for enhanced durability
- Lower mount: Stem mount with 2.3/8" stem length and 3/8"-16 thread pitch
- Upper mount: Cross pin mount with closed ends and 5/16" hole ID
- Includes parts pack P01137 for installation
About the Monroe Load Adjusting Shock Absorber Line
The Load Adjusting Shock Absorber line by Monroe is engineered to provide consistent damping performance under varying load conditions. This product line is tailored to maintain vehicle stability and comfort by automatically adjusting to changes in weight and road conditions. The 58551 shock absorber assembly integrates these features to optimize suspension response for Chevrolet Camaro and Pontiac Firebird models.
Detailed Product Description
This Monroe shock absorber and coil spring assembly features a compressed length of 12.125 inches and an extended length of 20.375 inches, providing a travel length of 8.25 inches. The metal dust shield protects internal components from debris and corrosion, extending the service life of the shock. The lower mounting uses a stem mount with a 2.3/8" stem length and 3/8"-16 thread pitch, while the upper mounting employs a cross pin mount with closed ends and a 5/16" hole ID, ensuring secure and precise fitment. The assembly comes with parts pack P01137 to facilitate installation.
Common Applications and Problem Solving
- Restores proper suspension travel and damping for Chevrolet Camaro and Pontiac Firebird
- Addresses uneven ride height caused by varying vehicle loads
- Reduces excessive body roll and improves handling stability
- Eliminates noise and vibration from worn or damaged shocks
- Prevents premature tire wear due to suspension issues
Installation Notes and Tips
- Verify compatibility with your specific Chevrolet Camaro or Pontiac Firebird model year before installation
- Use the included parts pack P01137 for a complete and secure assembly
- Ensure proper torque specifications on both upper cross pin and lower stem mounts
- Inspect related suspension components for wear during installation
- Professional installation is recommended for optimal performance and safety
Quality Assurance and Warranty
Monroe Load Adjusting Shock Absorbers are manufactured to meet or exceed OEM standards for durability and performance. This part number 58551 undergoes rigorous quality control to ensure reliable operation. Warranty coverage details should be confirmed with the original product documentation or authorized Monroe distributors.
| Brand | Monroe |
|---|---|
| Part Number | 58551 |
| Position | Load Adjusting Shock Absorber, Rear |
| Compressed Bumper Stop | No |
| Compressed Length | 12.125 |
| Dust Shield | Yes |
| Dust Shield Material | Metal |
| Extended Bumper Stop | No |
| Extended Hydraulic Lockout | No |
| Extended Length | 20.375 |
| Lower Mounting Code | S4 |
| Lower Mounting Type | Stem Mount - 2.3/8" Stem Length X 3/8"-16 Thread Pitch |
| Parts Pack | P01137 |
| Travel Length | 8.25 |
| Upper Mounting Code | XP7 |
| Upper Mounting Type | Cross Pin Mount - Closed Ended, 5/16" Hole ID (Both Ends) X 2.7/8" Pin Length (Hole Center to Center) |
This part fits 24 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 1981 | Chevrolet | Camaro | Rear | Compatible with vehicles intended for towing and hauling applications.; Load Adjusting Shock Absorber |
| 1981 | Pontiac | Firebird | Rear | Compatible with vehicles intended for towing and hauling applications.; Load Adjusting Shock Absorber |
| 1980 | Chevrolet | Camaro | Rear | Compatible with vehicles intended for towing and hauling applications.; Load Adjusting Shock Absorber |
| 1980 | Pontiac | Firebird | Rear | Compatible with vehicles intended for towing and hauling applications.; Load Adjusting Shock Absorber |
| 1979 | Chevrolet | Camaro | Rear | Compatible with vehicles intended for towing and hauling applications.; Load Adjusting Shock Absorber |
| 1979 | Pontiac | Firebird | Rear | Compatible with vehicles intended for towing and hauling applications.; Load Adjusting Shock Absorber |
| 1978 | Chevrolet | Camaro | Rear | Compatible with vehicles intended for towing and hauling applications.; Load Adjusting Shock Absorber |
| 1978 | Pontiac | Firebird | Rear | Compatible with vehicles intended for towing and hauling applications.; Load Adjusting Shock Absorber |
| 1977 | Chevrolet | Camaro | Rear | Compatible with vehicles intended for towing and hauling applications.; Load Adjusting Shock Absorber |
| 1977 | Pontiac | Firebird | Rear | Compatible with vehicles intended for towing and hauling applications.; Load Adjusting Shock Absorber |
| 1976 | Chevrolet | Camaro | Rear | Compatible with vehicles intended for towing and hauling applications.; Load Adjusting Shock Absorber |
| 1976 | Pontiac | Firebird | Rear | Compatible with vehicles intended for towing and hauling applications.; Load Adjusting Shock Absorber |
| 1975 | Chevrolet | Camaro | Rear | Compatible with vehicles intended for towing and hauling applications.; Load Adjusting Shock Absorber |
| 1975 | Pontiac | Firebird | Rear | Compatible with vehicles intended for towing and hauling applications.; Load Adjusting Shock Absorber |
| 1974 | Chevrolet | Camaro | Rear | Compatible with vehicles intended for towing and hauling applications.; Load Adjusting Shock Absorber |
| 1974 | Pontiac | Firebird | Rear | Compatible with vehicles intended for towing and hauling applications.; Load Adjusting Shock Absorber |
| 1973 | Chevrolet | Camaro | Rear | Compatible with vehicles intended for towing and hauling applications.; Load Adjusting Shock Absorber |
| 1973 | Pontiac | Firebird | Rear | Compatible with vehicles intended for towing and hauling applications.; Load Adjusting Shock Absorber |
| 1972 | Chevrolet | Camaro | Rear | Compatible with vehicles intended for towing and hauling applications.; Load Adjusting Shock Absorber |
| 1972 | Pontiac | Firebird | Rear | Compatible with vehicles intended for towing and hauling applications.; Load Adjusting Shock Absorber |
| 1971 | Chevrolet | Camaro | Rear | Compatible with vehicles intended for towing and hauling applications.; Load Adjusting Shock Absorber |
| 1971 | Pontiac | Firebird | Rear | Compatible with vehicles intended for towing and hauling applications.; Load Adjusting Shock Absorber |
| 1970 | Chevrolet | Camaro | Rear | Compatible with vehicles intended for towing and hauling applications.; Load Adjusting Shock Absorber |
| 1970 | Pontiac | Firebird | Rear | Compatible with vehicles intended for towing and hauling applications.; Load Adjusting Shock Absorber |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.