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DormanPart #: 22-1661
Dorman 22-1661 Leaf Helper Spring - Rear
76 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Chevrolet and GMC, Sierra 2500 HD, Sierra 3500 HD, Silverado 2500 HD, and Silverado 3500 HD
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Not what you need? See all Leaf Helper Spring options
Durable Leaf Helper Spring for Chevrolet and GMC Trucks
The Dorman 22-1661 leaf helper spring is engineered to provide additional support and load capacity for heavy-duty trucks. Designed specifically for Chevrolet Silverado 2500 HD, Silverado 3500 HD, GMC Sierra 2500 HD, and Sierra 3500 HD models, this steel helper spring enhances suspension performance under demanding conditions.
- Constructed from high-strength steel (acero) for durability
- Measures 38.75 inches in length, 3 inches in width, and 1.063 inches in thickness
- Black finish for corrosion resistance and long service life
- Increases leaf spring load capacity by up to 750 lbs
- Compatible with heavy-duty Chevrolet and GMC truck suspension systems
Product Details and Specifications
The Dorman 22-1661 leaf helper spring is made from robust steel material, ensuring reliable performance and resistance to wear. Its dimensions—38.75 inches long, 3 inches wide, and 1.063 inches thick—are optimized to fit the rear suspension of select Chevrolet and GMC heavy-duty trucks. The black coating provides protection against rust and environmental damage, extending the lifespan of the component. This helper spring is designed to increase the load rating of the existing leaf spring by 750 pounds, making it suitable for trucks that frequently carry heavy loads or tow trailers.
Compatible Vehicles and Applications
- Chevrolet Silverado 2500 HD
- Chevrolet Silverado 3500 HD
- GMC Sierra 2500 HD
- GMC Sierra 3500 HD
This leaf helper spring is ideal for owners of these models who require enhanced suspension support for hauling, towing, or improving ride stability under heavy loads.
Common Issues Addressed by Leaf Helper Springs
- Excessive sagging of rear suspension under heavy loads
- Reduced vehicle stability when towing or hauling
- Uneven tire wear caused by improper load distribution
- Increased stress on primary leaf springs leading to premature wear
- Improved ride height and handling during heavy-duty use
Installation Notes and Tips
Installation of the Dorman 22-1661 leaf helper spring requires proper alignment with the existing leaf spring pack. It is recommended to have the installation performed by a qualified technician familiar with suspension components on Chevrolet Silverado and GMC Sierra heavy-duty trucks. Ensure all mounting points are inspected for wear or damage before installation. Note that mounting hardware is not included and must be sourced separately.
Quality Assurance and Warranty
Dorman manufactures this leaf helper spring to meet or exceed OEM standards for material strength and durability. The steel construction and protective black finish contribute to long-term reliability. While specific warranty details are not provided, Dorman products typically come with a limited warranty against defects in material and workmanship. Consult product documentation or the manufacturer for exact warranty terms.
| Brand | Dorman |
|---|---|
| Part Number | 22-1661 |
| Material | Acero |
| Material | Steel |
| Length | 38.75 |
| Color | Black |
| Color | Negro |
| Color | Noir |
| Thickness | 1.063 |
| Leaf Spring Load Increase Strength | 750 |
| Maximum Load Rating | 750 |
| Width | 3 |
| Mounting Hardware Included | No |
| Mounting Hardware Included | Non |
| Contenidos del paquete | 1 hoja de muelle |
| Package Contents | 1 leaf spring |
This part fits 76 vehicles. Search below:
| Year | Make | Model | Body Type | Position | Notes |
|---|---|---|---|---|---|
| 2018 | Chevrolet | Silverado 2500 HD | Standard Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2018 | Chevrolet | Silverado 2500 HD | Crew Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2018 | Chevrolet | Silverado 3500 HD | Standard Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2018 | Chevrolet | Silverado 3500 HD | Crew Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2018 | GMC | Sierra 2500 HD | Standard Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2018 | GMC | Sierra 2500 HD | Crew Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2018 | GMC | Sierra 3500 HD | Standard Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2018 | GMC | Sierra 3500 HD | Crew Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2017 | Chevrolet | Silverado 2500 HD | Standard Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2017 | Chevrolet | Silverado 2500 HD | Crew Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2017 | Chevrolet | Silverado 3500 HD | Standard Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2017 | Chevrolet | Silverado 3500 HD | Crew Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2017 | GMC | Sierra 2500 HD | Standard Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2017 | GMC | Sierra 2500 HD | Crew Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2017 | GMC | Sierra 3500 HD | Standard Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2017 | GMC | Sierra 3500 HD | Crew Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2016 | Chevrolet | Silverado 2500 HD | Standard Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2016 | Chevrolet | Silverado 2500 HD | Crew Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2016 | Chevrolet | Silverado 3500 HD | Standard Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2016 | Chevrolet | Silverado 3500 HD | Crew Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2016 | GMC | Sierra 2500 HD | Standard Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2016 | GMC | Sierra 2500 HD | Crew Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2016 | GMC | Sierra 3500 HD | Standard Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2016 | GMC | Sierra 3500 HD | Crew Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2015 | Chevrolet | Silverado 2500 HD | Standard Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2015 | Chevrolet | Silverado 2500 HD | Crew Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2015 | Chevrolet | Silverado 3500 HD | Standard Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2015 | Chevrolet | Silverado 3500 HD | Crew Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2015 | GMC | Sierra 2500 HD | Standard Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2015 | GMC | Sierra 2500 HD | Crew Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2015 | GMC | Sierra 3500 HD | Standard Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2015 | GMC | Sierra 3500 HD | Crew Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2014 | Chevrolet | Silverado 2500 HD | Standard Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2014 | Chevrolet | Silverado 2500 HD | Crew Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2014 | Chevrolet | Silverado 3500 HD | Standard Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2014 | Chevrolet | Silverado 3500 HD | Crew Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2014 | GMC | Sierra 2500 HD | Standard Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2014 | GMC | Sierra 2500 HD | Crew Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2014 | GMC | Sierra 3500 HD | Standard Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2014 | GMC | Sierra 3500 HD | Crew Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2013 | Chevrolet | Silverado 2500 HD | Standard Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2013 | Chevrolet | Silverado 2500 HD | Extended Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2013 | Chevrolet | Silverado 2500 HD | Crew Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2013 | Chevrolet | Silverado 3500 HD | Standard Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2013 | Chevrolet | Silverado 3500 HD | Extended Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2013 | Chevrolet | Silverado 3500 HD | Crew Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2013 | GMC | Sierra 2500 HD | Standard Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2013 | GMC | Sierra 2500 HD | Extended Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2013 | GMC | Sierra 2500 HD | Crew Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2013 | GMC | Sierra 3500 HD | Standard Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2013 | GMC | Sierra 3500 HD | Extended Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2013 | GMC | Sierra 3500 HD | Crew Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2012 | Chevrolet | Silverado 2500 HD | Standard Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2012 | Chevrolet | Silverado 2500 HD | Extended Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2012 | Chevrolet | Silverado 2500 HD | Crew Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2012 | Chevrolet | Silverado 3500 HD | Standard Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2012 | Chevrolet | Silverado 3500 HD | Extended Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2012 | Chevrolet | Silverado 3500 HD | Crew Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2012 | GMC | Sierra 2500 HD | Standard Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2012 | GMC | Sierra 2500 HD | Extended Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2012 | GMC | Sierra 2500 HD | Crew Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2012 | GMC | Sierra 3500 HD | Standard Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2012 | GMC | Sierra 3500 HD | Extended Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2012 | GMC | Sierra 3500 HD | Crew Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2011 | Chevrolet | Silverado 2500 HD | Standard Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2011 | Chevrolet | Silverado 2500 HD | Extended Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2011 | Chevrolet | Silverado 2500 HD | Crew Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2011 | Chevrolet | Silverado 3500 HD | Standard Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2011 | Chevrolet | Silverado 3500 HD | Extended Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2011 | Chevrolet | Silverado 3500 HD | Crew Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2011 | GMC | Sierra 2500 HD | Standard Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2011 | GMC | Sierra 2500 HD | Extended Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2011 | GMC | Sierra 2500 HD | Crew Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2011 | GMC | Sierra 3500 HD | Standard Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2011 | GMC | Sierra 3500 HD | Extended Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
| 2011 | GMC | Sierra 3500 HD | Crew Cab Pickup | Rear | 2 Leaf Full Taper Spring; 1.0625 In. Pack Thickness; 750 Lb. Average Capacity; w/Dual Rear Wheels (DRW) |
* 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:
22-1661DAY22-170122-171522-173522-174922-181322-1829
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.