Dorman 929-911 Coil Spring - Rear

Dorman 929-911 Heavy-Duty Rear Coil Springs

Dorman 929-911 rear coil springs are built for Ram 1500 and Dodge Ram 1500 trucks that see regular heavy hauling. This suspension upgrade increases load handling by 35% over the vehicle’s nominal spring rate while helping improve ride control and reduce driver fatigue.

Key Features

• Heavy-duty coil spring design for rear suspension applications
• 35% increase in load handling capability over nominal spring rate
• 5160H alloy construction with powder-coated finish
• Constant spring rate for predictable rear suspension response
• OE lift of +1.8 in for a taller rear stance
• Fits 2011-2018 Ram 1500, rear standard rate
• Fits 2009-2010 Dodge Ram 1500, rear standard rate

Detailed Description

Built from 5160H alloy and finished in metallic grey powder coat, Dorman 929-911 is engineered as a direct rear coil spring replacement for trucks used in continuous load-carrying conditions. The pigtail over center and semi-closed plain end design supports proper spring seating, while the constant-rate construction helps maintain consistent rear suspension behavior under load. For Ram 1500 owners looking for a rear spring upgrade, this part number 929-911 provides a practical balance of ride quality and load support.

Compatible With 2011-2018 Ram 1500, rear standard rate, and 2009-2010 Dodge Ram 1500, rear standard rate. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Problems This Part Can Address

• Rear sag from repeated hauling or towing
• Reduced ride height under cargo weight
• Excessive rear-end bottoming on loaded trips
• Unstable handling from worn or weakened springs
• Driver fatigue caused by inconsistent rear suspension response

Installation Notes and Tips

Inspect rear spring seats, isolators, and surrounding suspension components before installation. Verify standard-rate rear fitment for the specific Ram 1500 or Dodge Ram 1500 model year before ordering. After installation, confirm ride height and suspension alignment checks as needed for the vehicle’s load setup.

Quality Assurance

Dorman engineers this coil spring set for heavy-duty service in pickup trucks, SUVs, RVs, plow trucks, vans, and similar load-bearing applications. Part number 929-911 is built to support demanding rear suspension use while maintaining consistent spring rate performance.