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Dorman 43-1581 Leaf Helper Spring - Rear
| Brand | Dorman 43-1581 |
|---|---|
| Position | Rear |
| Material | Acero |
| Material | Steel |
| Length | 43.25 |
| Color | Black |
| Color | Negro |
| Color | Noir |
| Thickness | 0.558 |
| Leaf Spring Load Increase Strength | 600 |
| Maximum Load Rating | 600 |
| Width | 3 |
| Mounting Hardware Included | No |
| Mounting Hardware Included | Non |
| Contenidos del paquete | 1 hoja de muelle |
| Package Contents | 1 leaf spring |
| Fits | Ford · 12 vehicles |
OE-style fit and function. Matches the original spring’s role for straightforward replacement.
Steel construction. Built for durability and reliable performance.
600 lb load increase. Adds extra support to help handle heavier loads.
Cross-references 5C3Z5588GA, 5C34GB and 5C345588GB for the same application. See all 8.
Leaf Helper Spring for Ford F-350 Super Duty
Dorman 43-1581 is a rear leaf helper spring built for 2005-2016 Ford F-350 Super Duty models with dual rear wheels. It is engineered to match the original spring’s fit and function while adding 600 lb. load increase strength for heavy-duty suspension support.
Key Features
- Rear leaf helper spring for Ford F-350 Super Duty applications
- 600 lb. maximum load rating / load increase strength
- Steel construction with black finish
- 43.25 in. length, 3 in. width, 0.558 in. thickness
- OE-style replacement for specified rear suspension setups
- Part number 43-1581 for direct identification
Detailed Description
This Dorman leaf helper spring is designed for the rear suspension on 2005-2016 Ford F-350 Super Duty trucks equipped with dual rear wheels (DRW). It follows the original spring’s fit and function, helping restore proper rear suspension support on heavy-duty work trucks. The steel construction and black finish are selected for durability in demanding towing and hauling use, and the 43-1581 part number helps confirm the correct application during ordering and service.
This part cross-references Ford OE numbers 5C3Z5588GA and 5C34GB for the same application.
What It Helps Address
- Rear sag under load
- Reduced support during towing or hauling
- Worn or fatigued helper spring performance
- Uneven rear ride height on DRW-equipped trucks
- Loss of suspension support in heavy-duty service
Installation Notes and Tips
Compatible With 2005-2016 Ford F-350 Super Duty, rear, DRW. Verify spring dimensions, mounting points, and suspension configuration before installation. Mounting hardware is not included. Because this is a suspension component, professional installation and a post-installation alignment or ride-height check are recommended. Use the 43-1581 part number to confirm the correct rear helper spring for the vehicle.
Quality Assurance
Dorman designs this helper spring to match OE fit and function for the listed Ford F-350 Super Duty applications. The steel construction is engineered for durable, reliable performance in rear suspension service.
| Year | Make | Model | Body Type | Position | Notes |
|---|---|---|---|---|---|
| 2016 | Ford | F-350 Super Duty | Cab & Chassis | Rear | 1 Leaf; Full Taper; 9/16 In. Leaf Thickness; 600 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2015 | Ford | F-350 Super Duty | Cab & Chassis | Rear | 1 Leaf; Full Taper; 9/16 In. Leaf Thickness; 600 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2014 | Ford | F-350 Super Duty | Cab & Chassis | Rear | 1 Leaf; Full Taper; 9/16 In. Leaf Thickness; 600 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2013 | Ford | F-350 Super Duty | Cab & Chassis | Rear | 1 Leaf; Full Taper; 9/16 In. Leaf Thickness; 600 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2012 | Ford | F-350 Super Duty | Cab & Chassis | Rear | 1 Leaf; Full Taper; 9/16 In. Leaf Thickness; 600 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2011 | Ford | F-350 Super Duty | Cab & Chassis | Rear | 1 Leaf; Full Taper; 9/16 In. Leaf Thickness; 600 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2010 | Ford | F-350 Super Duty | Cab & Chassis | Rear | 1 Leaf; Full Taper; 9/16 In. Leaf Thickness; 600 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2009 | Ford | F-350 Super Duty | Cab & Chassis | Rear | 1 Leaf; Full Taper; 9/16 In. Leaf Thickness; 600 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2008 | Ford | F-350 Super Duty | Cab & Chassis | Rear | 1 Leaf; Full Taper; 9/16 In. Leaf Thickness; 600 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2007 | Ford | F-350 Super Duty | Cab & Chassis | Rear | 1 Leaf; Full Taper; 9/16 In. Leaf Thickness; 600 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2006 | Ford | F-350 Super Duty | Cab & Chassis | Rear | 1 Leaf; Full Taper; 9/16 In. Leaf Thickness; 600 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2005 | Ford | F-350 Super Duty | Cab & Chassis | Rear | 1 Leaf; Full Taper; 9/16 In. Leaf Thickness; 600 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
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