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Dorman 43-1225 Leaf Spring Assembly - Rear
Durable Leaf Spring Assembly for Ford F-250 and F-250 HD
The Dorman 43-1225 leaf spring assembly is engineered to restore the rear suspension performance of your Ford F-250 or F-250 HD. Constructed from high-quality steel with a black finish, this replacement leaf spring assembly offers reliable support and consistent load handling for your truck.
- Constructed from durable steel material with a black finish for corrosion resistance
- Includes four leaves with a 3-inch width and 2.188-inch pack thickness
- Designed for rear axle orientation, compatible with Ford F-250 and F-250 HD models
- Standard replacement suspension grade with a 2700 lb load rate
- Comes with black bushings included for improved fit and function
- No axle modification or helper spring required for installation
Product Details and Specifications
This Dorman leaf spring assembly (part number 43-1225) features four steel leaves, each 3 inches wide, stacked to a pack thickness of 2.188 inches. The leaf spring arch length measures 8 inches, providing the necessary flex and support for rear suspension applications. Designed as a standard replacement part, it supports a load rate of 2700 pounds, suitable for typical usage scenarios on Ford F-250 and F-250 HD trucks. The assembly includes black bushings to ensure proper alignment and reduce wear, but mounting hardware is not included. No axle modifications are needed, simplifying the replacement process.
Common Applications and Problem Solving
- Restores sagging or worn rear suspension springs on Ford F-250 and F-250 HD
- Addresses uneven ride height or poor load handling in rear axle suspension
- Replaces broken or cracked leaf springs to maintain vehicle stability
- Improves rear suspension performance after heavy use or off-road driving
- Supports proper axle alignment and reduces suspension noise caused by worn bushings
Installation Notes and Tips
Installation of the Dorman 43-1225 leaf spring assembly requires no axle modifications or additional helper springs. Ensure the vehicle is safely supported before removing the old leaf springs. Since mounting hardware is not included, reuse existing hardware if in good condition or purchase new hardware separately. Proper torque specifications should be followed to maintain suspension integrity and safety.
Quality Assurance and Warranty
Dorman manufactures this leaf spring assembly to meet or exceed OEM standards for material and performance. The steel construction and included bushings contribute to long-lasting durability. While specific warranty details are not provided, Dorman products typically come with a limited warranty against defects in material and workmanship.
| Brand | Dorman |
| Part Number | 43-1225 |
| Material | Acero |
| Material | Steel |
| Bushing Color | Black |
| Bushing Color | Negro |
| Bushing Color | Noir |
| Color | Black |
| Color | Negro |
| Color | Noir |
| Load Rate | 2700 |
| Suspension Grade Type | Reemplazo estándar |
| Suspension Grade Type | Standard |
| 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 |
| Length Axis 2 | 25 |
| Pack Thickness | 2.188 |
| Leaf Spring Arch Length | 8 |
| Spring Research Institute Number | 43-1225 |
This part fits 18 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 1997 | Ford | F-250 HD | Rear | 3 Leaf / 1 Leaf = 4 Leaf Spring / 1 Pad; 2.8125 In. Pack Thickness; 2,700 Lb. Average Capacity |
| 1996 | Ford | F-250 | Rear | 3 Leaf / 1 Leaf = 4 Leaf Spring / 1 Pad; 2.8125 In. Pack Thickness; 2,700 Lb. Average Capacity |
| 1995 | Ford | F-250 | Rear | 3 Leaf / 1 Leaf = 4 Leaf Spring / 1 Pad; 2.8125 In. Pack Thickness; 2,700 Lb. Average Capacity |
| 1994 | Ford | F-250 | Rear | 3 Leaf / 1 Leaf = 4 Leaf Spring / 1 Pad; 2.8125 In. Pack Thickness; 2,700 Lb. Average Capacity |
| 1993 | Ford | F-250 | Rear | 3 Leaf / 1 Leaf = 4 Leaf Spring / 1 Pad; 2.8125 In. Pack Thickness; 2,700 Lb. Average Capacity |
| 1992 | Ford | F-250 | Rear | 3 Leaf / 1 Leaf = 4 Leaf Spring / 1 Pad; 2.8125 In. Pack Thickness; 2,700 Lb. Average Capacity |
| 1991 | Ford | F-250 | Rear | 3 Leaf / 1 Leaf = 4 Leaf Spring / 1 Pad; 2.8125 In. Pack Thickness; 2,700 Lb. Average Capacity |
| 1990 | Ford | F-250 | Rear | 3 Leaf / 1 Leaf = 4 Leaf Spring / 1 Pad; 2.8125 In. Pack Thickness; 2,700 Lb. Average Capacity |
| 1989 | Ford | F-250 | Rear | 3 Leaf / 1 Leaf = 4 Leaf Spring / 1 Pad; 2.8125 In. Pack Thickness; 2,700 Lb. Average Capacity |
| 1988 | Ford | F-250 | Rear | 3 Leaf / 1 Leaf = 4 Leaf Spring / 1 Pad; 2.8125 In. Pack Thickness; 2,700 Lb. Average Capacity |
| 1987 | Ford | F-250 | Rear | 3 Leaf / 1 Leaf = 4 Leaf Spring / 1 Pad; 2.8125 In. Pack Thickness; 2,700 Lb. Average Capacity |
| 1986 | Ford | F-250 | Rear | 3 Leaf / 1 Leaf = 4 Leaf Spring / 1 Pad; 2.8125 In. Pack Thickness; 2,700 Lb. Average Capacity |
| 1985 | Ford | F-250 | Rear | 3 Leaf / 1 Leaf = 4 Leaf Spring / 1 Pad; 2.8125 In. Pack Thickness; 2,700 Lb. Average Capacity |
| 1984 | Ford | F-250 | Rear | 3 Leaf / 1 Leaf = 4 Leaf Spring / 1 Pad; 2.8125 In. Pack Thickness; 2,700 Lb. Average Capacity |
| 1983 | Ford | F-250 | Rear | 3 Leaf / 1 Leaf = 4 Leaf Spring / 1 Pad; 2.8125 In. Pack Thickness; 2,700 Lb. Average Capacity |
| 1982 | Ford | F-250 | Rear | 3 Leaf / 1 Leaf = 4 Leaf Spring / 1 Pad; 2.8125 In. Pack Thickness; 2,700 Lb. Average Capacity |
| 1981 | Ford | F-250 | Rear | 3 Leaf / 1 Leaf = 4 Leaf Spring / 1 Pad; 2.8125 In. Pack Thickness; 2,700 Lb. Average Capacity |
| 1980 | Ford | F-250 | Rear | 3 Leaf / 1 Leaf = 4 Leaf Spring / 1 Pad; 2.8125 In. Pack Thickness; 2,700 Lb. Average Capacity |
* 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.