Dorman 03900 Leaf Spring Bolt - Rear Forward or Rear Rearward

Dorman 03900 Leaf Spring Bolt for Rear Suspension

Dorman 03900 is a metric leaf spring bolt engineered to match the fit and function of the original hardware on specified vehicles. Built from quality materials with a standard-grade design and a Button Torx Socket head, it supports secure rear suspension assembly on applications such as Dodge Dakota, Ram 1500, Durango, and Mitsubishi Raider.

Key Features

• Direct replacement leaf spring bolt for rear suspension hardware
• Metric thread design with 14 mm thread diameter and 2 mm thread pitch
• 5.05 in. length for specified OE-style fitment
• Standard grade type for routine suspension service
• Button Torx Socket head for serviceable installation and removal
• Engineered to match original hardware fit and function

Detailed Description

This Dorman leaf spring bolt is designed for rear forward and rear rearward suspension locations on a wide range of Chrysler and Mitsubishi truck and SUV platforms. It is a practical replacement for worn, damaged, or corroded leaf spring fasteners on 1997-2011 Dodge Dakota, 1998-2008 Dodge Ram 1500, 1999-2003 Dodge Durango, and 2006-2009 Mitsubishi Raider applications. This part number, 03900, also cross-references 6505599AA for the same application.

Use Dorman 03900 when servicing rear leaf spring mounting points that require OE-style dimensions and metric thread specification. The part number 03900 is a fitment-based solution for rear suspension repair where correct bolt length, thread pitch, and head style matter for proper assembly.

Common Repair Uses

• Replacing a rusted or seized rear leaf spring bolt
• Restoring secure leaf spring attachment after suspension service
• Correcting stripped or damaged suspension fastener threads
• Addressing clunking or looseness at the rear spring mount
• Repairing OE hardware that no longer holds torque reliably

Installation Notes and Tips

Verify rear position, thread diameter, thread pitch, and bolt length before installation. Match the application to the correct rear forward or rear rearward location listed for your vehicle, including Dodge Dakota, Ram 1500, Durango, and Mitsubishi Raider models. Clean the mounting surfaces and inspect the leaf spring eye, bracket, and surrounding hardware for wear before tightening to specification.

Quality Assurance

Dorman designs this hardware to match original fit and function on specified vehicles and manufactures it from quality materials for reliable performance in suspension service.