Dorman 905-539 Rear Lower Rearward Differential Mount Instruction Manual

Introduction

The Dorman 905-539 Rear Lower Rearward Differential Mount is a precision-engineered component designed to provide a reliable replacement for the original equipment differential mount in select Honda vehicles. This manual provides essential information for the proper installation, maintenance, and troubleshooting of this product.

This part is compatible with the following vehicles:

• Honda CR-V: 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
• Honda Element: 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011

Always verify fitment for your specific vehicle trim using appropriate tools or resources before installation.

Figure 1: Dorman 905-539 Rear Lower Rearward Differential Mount, showing its overall structure and mounting points.

Safety Information

Always prioritize safety when working on vehicles. Improper installation or handling can lead to serious injury or damage to the vehicle.

• Wear appropriate personal protective equipment (PPE), including safety glasses and gloves.
• Ensure the vehicle is securely supported on jack stands or a lift before beginning any work. Never rely solely on a jack.
• Disconnect the vehicle's battery before performing electrical work, if applicable (not directly relevant for this part, but good general practice).
• Refer to the vehicle manufacturer's service manual for specific torque specifications and procedures.
• Keep work area clean and well-lit.
• Proposition 65 Warning: This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

Product Overview

The Dorman 905-539 differential mount is designed to secure the rear differential to the vehicle's chassis, absorbing vibrations and ensuring proper alignment of drivetrain components. It is constructed from durable materials to withstand the stresses of vehicle operation.

Key Features:

• Direct Replacement: Engineered to fit and perform like the original equipment.
• Reliable Fit: Precision-engineered to match the design and dimensions of original components.
• Durable Construction: Manufactured to strict standards using sturdy, safe materials for longevity.
• Rigorously Tested: Undergoes thorough quality control measures to ensure performance and durability.

Installation Instructions

Installation of the differential mount requires mechanical aptitude and appropriate tools. If you are unsure about any step, consult a qualified automotive technician.

Tools and Materials Required:

• Socket/Wrench Set
• Torque Wrench
• Vehicle Lift or Jack Stands
• Penetrating Oil (optional)
• Wire Brush (optional)

Procedure:

1. Prepare the Vehicle: Safely lift and support the vehicle on a level surface. Ensure the rear differential is accessible.
2. Locate the Old Mount: Identify the existing rear lower rearward differential mount. It will typically be bolted to the differential housing and the vehicle's subframe.
3. Support the Differential: Use a transmission jack or suitable support to slightly relieve pressure on the differential mount. This will prevent the differential from dropping once the old mount is removed.
4. Remove Old Mount: Carefully unbolt the old differential mount from both the differential and the subframe. Note the orientation of the old mount for correct installation of the new part.
   

   Figure 2: Bottom view of the Dorman 905-539 Differential Mount, highlighting the lower mounting points.

   

   Figure 3: Top view of the Dorman 905-539 Differential Mount, showing the upper mounting points and overall design.

5. Clean Mounting Surfaces: Inspect and clean any rust or debris from the mounting surfaces on both the differential and the subframe.
6. Install New Mount: Position the new Dorman 905-539 differential mount in place. Align the bolt holes and hand-tighten the bolts.
7. Torque Bolts: Refer to your vehicle's service manual for the correct torque specifications for the differential mount bolts. Tighten all bolts to the specified torque. Do not overtighten.
8. Final Check: Double-check all connections to ensure they are secure. Remove the differential support and safely lower the vehicle.

Operating Considerations

Once installed, the differential mount functions passively to support the differential and dampen vibrations. There are no operational controls for this component.

After installation, it is recommended to drive the vehicle for a short period and listen for any unusual noises or vibrations. A properly installed differential mount should contribute to a smoother and quieter drivetrain operation.

Maintenance

The Dorman 905-539 differential mount is designed for long-term durability. Regular inspection is recommended as part of routine vehicle maintenance.

• Visual Inspection: Periodically inspect the differential mount for signs of wear, cracking, tearing of the rubber, or corrosion on the metal components.
• Check for Looseness: Ensure all mounting bolts remain tight. If any looseness is detected, re-torque to vehicle manufacturer specifications.
• Address Fluid Leaks: If you notice any fluid leaks from the differential itself, address them promptly, as leaking fluids can degrade rubber components over time.

Troubleshooting

If you experience issues after installing the differential mount, consider the following common problems and solutions:

If troubleshooting steps do not resolve the issue, it is recommended to consult a certified mechanic.

Specifications

Warranty and Support

For information regarding product warranty, returns, or technical support, please refer to the official Dorman website or contact Dorman customer service directly. Keep your purchase receipt as proof of purchase.

Dorman Contact Information:

• Website: www.dormanproducts.com
• Refer to the website for current contact numbers and support options.