Dorman 22-1661 Rear Leaf Helper Spring for Select Chevrolet/GMC Models

The Dorman 22-1661 is a direct-replacement rear leaf helper spring engineered to match the fit and function of the original equipment spring on select Chevrolet and GMC trucks. Built from heavy-duty steel with a black corrosion-resistant finish, this helper spring is designed to restore proper suspension performance and add significant load-carrying capability to the rear spring pack.

This 2-leaf, full-taper helper spring is rated to increase the rear load rating by 750 lbs, making it an ideal solution for trucks that regularly haul heavy cargo, tow trailers, or suffer from rear suspension sag under load. The slipper-end design and precise dimensions ensure proper integration with the existing leaf spring assembly.

Key Features:

• Direct replacement — matches OEM fit and function for specified Chevrolet and GMC applications
• 750 lb load increase rating — ideal for towing, hauling, and load support
• Heavy-duty steel construction — built to withstand demanding use and resist fatigue
• Black protective finish — resists rust and environmental damage for long service life
• Full-taper, 2-leaf design with slipper end attachment
• 1.063 in thick / 3 in wide / 38.75 in long
• ½ in center hole for proper spring pack alignment
• Limited Lifetime Warranty — backed by Dorman's U.S.-based team of product experts

Dorman has been a trusted name in the automotive aftermarket since 1918, delivering OEM-quality replacement parts without the dealership price. The 22-1661 is manufactured to meet or exceed original equipment standards for material strength and durability.

Cross-Reference Part Numbers: 22-1661DAY, 22-1701, 22-1715, 22-1735, 22-1749, 22-1813, 22-1829