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Dorman 43-1555HD Leaf Spring Assembly - Rear
Durable Leaf Spring Assembly for Ford F-150 and Lincoln Mark LT
The Dorman 43-1555HD leaf spring assembly is engineered to provide reliable rear suspension support for Ford F-150 and Lincoln Mark LT trucks. Designed with heavy-duty applications in mind, this steel leaf spring assembly offers consistent load handling and durability.
Key Features of the Dorman 43-1555HD Leaf Spring Assembly
- Constructed from high-strength steel for long-lasting performance
- Heavy-duty suspension grade with a 2400 lb load rate capacity
- Includes four leaves with a 3-inch leaf width for balanced support
- Black powder-coated finish resists corrosion and wear
- Comes with black bushings included for smooth operation
- Rear axle orientation designed specifically for Ford F-150 and Lincoln Mark LT
- No axle modification required for installation
- Leaf spring arch length of 7.625 inches and pack thickness of 2.228 inches
Detailed Description of the Dorman 43-1555HD Leaf Spring Assembly
This leaf spring assembly is crafted from durable steel, ensuring it withstands the rigors of heavy-duty use. The black finish provides additional protection against rust and environmental damage. Featuring four leaves, each 3 inches wide, the assembly delivers stable and consistent suspension support. The included black bushings help reduce noise and vibration, contributing to a smoother ride. Designed for rear axle orientation, this leaf spring assembly fits Ford F-150 and Lincoln Mark LT models without requiring any axle modifications. With a load rate of 2400 pounds, it is suitable for demanding applications where reliable suspension performance is critical.
Common Applications and Problem Solving
- Restores sagging or worn rear suspension in Ford F-150 and Lincoln Mark LT trucks
- Improves load carrying capacity for heavy-duty hauling and towing
- Eliminates excessive rear-end bounce and instability
- Replaces damaged or corroded leaf springs to maintain vehicle safety
- Enhances overall ride quality and suspension responsiveness
Installation Notes and Tips
The Dorman 43-1555HD leaf spring assembly is designed for direct replacement on compatible Ford F-150 and Lincoln Mark LT models. No axle modifications are necessary, simplifying installation. It is recommended to inspect mounting points and hardware before installation, as mounting hardware is not included. Proper torque specifications should be followed to ensure secure fitment and optimal suspension performance.
Quality Assurance and Warranty Information
Dorman manufactures this leaf spring assembly to meet or exceed OEM standards for durability and performance. The steel construction and corrosion-resistant finish contribute to a long service life. While specific warranty details are not provided, Dorman products typically come with a limited warranty against defects in materials and workmanship.
| Brand | Dorman |
|---|---|
| Part Number | 43-1555HD |
| Material | Acero |
| Material | Steel |
| Bushing Color | Black |
| Bushing Color | Negro |
| Bushing Color | Noir |
| Color | Black |
| Color | Negro |
| Color | Noir |
| Load Rate | 2400 |
| Suspension Grade Type | Heavy duty |
| Suspension Grade Type | Para uso pesado |
| Leaf Quantity | 4 |
| Leaf Width | 3 |
| Axle Orientation | Arrière |
| Axle Orientation | Rear |
| Axle Orientation | Trasero |
| Helper Spring | No |
| Helper Spring | Non |
| Axle Modification Needed | No |
| Axle Modification Needed | Non |
| Bushings Included | Oui |
| Bushings Included | Sí |
| Bushings Included | Yes |
| Mounting Hardware Included | No |
| Mounting Hardware Included | Non |
| Length Axis 1 | 25.625 |
| Length Axis 2 | 25.625 |
| Pack Thickness | 2.228 |
| Leaf Spring Arch Length | 7.625 |
| Spring Research Institute Number | 43-1555hd |
This part fits 8 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2008 | Ford | F-150 | Rear | 4 Leaf / 1 Leaf = 5 Leaf Spring; 2.25 In. Pack Thickness; 2,400 Lb. Average Capacity; Heavy Duty Aftermarket Design |
| 2008 | Lincoln | Mark LT | Rear | 4 Leaf / 1 Leaf = 5 Leaf Spring; 2.25 In. Pack Thickness; 2,400 Lb. Average Capacity; Heavy Duty Aftermarket Design |
| 2007 | Ford | F-150 | Rear | 4 Leaf / 1 Leaf = 5 Leaf Spring; 2.25 In. Pack Thickness; 2,400 Lb. Average Capacity; Heavy Duty Aftermarket Design |
| 2007 | Lincoln | Mark LT | Rear | 4 Leaf / 1 Leaf = 5 Leaf Spring; 2.25 In. Pack Thickness; 2,400 Lb. Average Capacity; Heavy Duty Aftermarket Design |
| 2006 | Ford | F-150 | Rear | 4 Leaf / 1 Leaf = 5 Leaf Spring; 2.25 In. Pack Thickness; 2,400 Lb. Average Capacity; Heavy Duty Aftermarket Design |
| 2006 | Lincoln | Mark LT | Rear | 4 Leaf / 1 Leaf = 5 Leaf Spring; 2.25 In. Pack Thickness; 2,400 Lb. Average Capacity; Heavy Duty Aftermarket Design |
| 2005 | Ford | F-150 | Rear | 4 Leaf / 1 Leaf = 5 Leaf Spring; 2.25 In. Pack Thickness; 2,400 Lb. Average Capacity; Heavy Duty Aftermarket Design |
| 2004 | Ford | F-150 | Rear | 4 Leaf / 1 Leaf = 5 Leaf Spring; 2.25 In. Pack Thickness; 2,400 Lb. Average Capacity; Heavy Duty Aftermarket Design |
* 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.