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Dorman 56-147 Leaf Spring Assembly - Rear
Durable Leaf Spring Assembly for Isuzu Trooper Rear Suspension
The Dorman 56-147 leaf spring assembly is designed specifically for the rear suspension of Isuzu Trooper models. Constructed from high-quality steel with a standard suspension grade, this leaf spring assembly offers reliable support and consistent load handling for your vehicle.
- Made from durable steel material for long-lasting performance
- Black finish with black bushings included for corrosion resistance
- Standard suspension grade with a load rate of 975 lbs
- Four-leaf configuration with 2.375-inch leaf width
- Rear axle orientation with Berlin eye attachments on both ends
- No axle modification required for installation
- Includes bushings but mounting hardware is not included
- Leaf spring arch length of 8.125 inches and pack thickness of 1.45 inches
Detailed Description of Dorman Leaf Spring Assembly 56-147
This Dorman leaf spring assembly (part number 56-147) is engineered to meet the suspension needs of the Isuzu Trooper rear axle. Featuring a four-leaf pack with a 2.375-inch width per leaf, it provides balanced support and stability. The black powder-coated finish helps resist rust and wear, while the included black bushings ensure smooth pivoting at the Berlin eye attachment points. With a load rate of 975 lbs, this standard-grade spring assembly is suitable for typical driving conditions without requiring axle modifications. The spring arch length of 8.125 inches and pack thickness of 1.45 inches contribute to maintaining proper ride height and suspension geometry.
Common Applications and Problem Solving
- Restores rear suspension support on Isuzu Trooper vehicles
- Replaces worn or sagging leaf springs causing uneven ride height
- Addresses rear axle instability or excessive bouncing
- Corrects alignment issues related to leaf spring wear
- Improves load handling and vehicle control under normal driving conditions
Installation Notes and Tips
The Dorman 56-147 leaf spring assembly is designed for direct replacement on the rear axle of Isuzu Trooper models without requiring axle modifications. Bushings are included to facilitate installation, but mounting hardware must be sourced separately. It is recommended to inspect all suspension components during installation and replace any worn or damaged parts to ensure optimal performance. Proper torque specifications should be followed when securing the Berlin eye attachments.
Quality Assurance and Warranty Information
Dorman manufactures this leaf spring assembly to meet industry standards for suspension components. The steel construction and corrosion-resistant finish contribute to durability and longevity. While specific warranty details are not provided, Dorman products typically come with a limited warranty against defects in materials and workmanship. For precise warranty terms, consult the product documentation or manufacturer.
| Brand | Dorman |
|---|---|
| Part Number | 56-147 |
| Material | Steel |
| Bushing Color | Black |
| Color | Black |
| Load Rate | 975 |
| Suspension Grade Type | Standard |
| Leaf Quantity | 4 |
| Leaf Width | 2.375 |
| Axle Orientation | Rear |
| Helper Spring | No |
| Axle Modification Needed | No |
| Bushings Included | Yes |
| Mounting Hardware Included | No |
| Length Axis 1 | 21.68 |
| Length Axis 2 | 21.68 |
| Length Axis 2 | 25.62 |
| Pack Thickness | 1.45 |
| Leaf Spring Arch Length | 8.125 |
| Spring Research Institute Number | 56-147 |
| End 1 Attachment Type | Berlin eye |
| End 2 Attachment Type | Berlin eye |
| Maximum Drop | 0 |
| Package Contents | 1 leaf spring |
This part fits 8 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 1991 | Isuzu | Trooper | Rear | Replace In Pairs; 3 Leaf / 1 Leaf = 4 Leaf Spring; 1.4375 In. Pack Thickness; wo/Bushings; w/Pressed In Front Bushing & Heavier Bottom Plate |
| 1990 | Isuzu | Trooper | Rear | Replace In Pairs; 3 Leaf / 1 Leaf = 4 Leaf Spring; 1.4375 In. Pack Thickness; wo/Bushings; w/Pressed In Front Bushing & Heavier Bottom Plate |
| 1989 | Isuzu | Trooper | Rear | Replace In Pairs; 3 Leaf / 1 Leaf = 4 Leaf Spring; 1.4375 In. Pack Thickness; wo/Bushings; w/Pressed In Front Bushing & Heavier Bottom Plate |
| 1988 | Isuzu | Trooper | Rear | Replace In Pairs; 3 Leaf / 1 Leaf = 4 Leaf Spring; 1.4375 In. Pack Thickness; wo/Bushings; w/Pressed In Front Bushing & Heavier Bottom Plate |
| 1987 | Isuzu | Trooper | Rear | Replace In Pairs; 3 Leaf / 1 Leaf = 4 Leaf Spring; 1.4375 In. Pack Thickness; wo/Bushings; w/Pressed In Front Bushing & Heavier Bottom Plate |
| 1986 | Isuzu | Trooper | Rear | Replace In Pairs; 3 Leaf / 1 Leaf = 4 Leaf Spring; 1.4375 In. Pack Thickness; wo/Bushings; w/Pressed In Front Bushing & Heavier Bottom Plate |
| 1985 | Isuzu | Trooper | Rear | Replace In Pairs; 3 Leaf / 1 Leaf = 4 Leaf Spring; 1.4375 In. Pack Thickness; wo/Bushings; w/Pressed In Front Bushing & Heavier Bottom Plate |
| 1984 | Isuzu | Trooper | Rear | Replace In Pairs; 3 Leaf / 1 Leaf = 4 Leaf Spring; 1.4375 In. Pack Thickness; wo/Bushings; w/Pressed In Front Bushing & Heavier Bottom Plate |
* 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.