User Manual

Introduction

This manual provides essential information for the proper installation, operation, and maintenance of your BST BSSP Rear Suspension Rubber Bump Stops Enhancement System, model DR2500D (BS-101-225). This system is designed to enhance your vehicle's suspension performance, particularly when carrying heavy loads or towing.

Please read this manual thoroughly before installation to ensure safe and effective use of the product. Retain this manual for future reference.

Figure 1: The BST BSSP Rear Suspension Rubber Bump Stops Enhancement System components.

Application and Compatibility

The DR2500D Rear Suspension Rubber Bump Stops Enhancement System is compatible with the following vehicle models:

• RAM 2500 2WD: 2014 - 2023
• RAM 2500 4WD: 2014 - 2023

This system replaces the factory jounce stops on the rear suspension of the specified RAM 2500 pickup truck models. It is engineered to deliver a progressive spring rate, adapting to varying loads.

Figure 2: Compatibility details for the suspension enhancement system, indicating fitment for 2014-2023 RAM 2500 4WD and 2WD models.

Product Features and Advantages

The BST BSSP Rear Suspension Rubber Bump Stops Enhancement System offers several benefits for your vehicle:

• Progressive Spring Rate: The hollow rubber springs are designed to work harder as more weight is applied, effectively preventing rear-end sag.
• Automatic Load Adjustment: Whether towing a trailer or carrying a heavy load, the system automatically adjusts to maintain vehicle level.
• Improved Ride Quality: Provides superb ride quality both when loaded and unloaded. A gap of ½” to 1 ½” between the rubber spring and axle is recommended to ensure optimal unloaded ride quality.
• Enhanced Stability: Helps to eliminate vehicle squatting and sagging, improving overall handling.
• Cushions Road Shocks: Absorbs road impacts, contributing to a smoother ride.
• High Capacity: Rated for an 8600 lbs capacity.

Important Note: While this system increases the spring rate, it does not increase the Gross Vehicle Weight Rating (GVWR) of your vehicle. Always ensure that the total load does not exceed the GVWR set by the vehicle manufacturer.

Package Contents

Upon opening the package, verify that all components listed below are present and undamaged:

• 2 x Aeon hollow rubber springs
• 2 x 1" rubber spacers
• 2 x Steel mounting brackets
• All necessary mounting hardware (bolts, nuts, washers)

Figure 3: Contents of the DR2500D kit, including rubber springs, spacers, brackets, and hardware.

Setup and Installation

Installation of the DR2500D system involves replacing the factory jounce stops. While specific steps may vary slightly by vehicle, the general procedure is as follows. It is recommended that installation be performed by a qualified mechanic or individual with experience in vehicle suspension systems.

1. Safety First: Park the vehicle on a level surface. Engage the parking brake. Use appropriate jack stands to safely support the vehicle frame, ensuring the rear axle is free to drop. Never work under a vehicle supported only by a jack.
2. Access Jounce Stops: Locate the factory jounce stops on the rear frame of the vehicle, above the axle.
3. Remove Factory Jounce Stops: Carefully remove the existing jounce stops. This may involve unbolting them from the frame.
4. Prepare New System: Assemble the BST BSSP rubber springs with the steel mounting brackets. Determine if the 1" rubber spacers are needed. The recommended gap between the rubber spring and axle when unloaded is ½” to 1 ½”. If your vehicle's unloaded ride height results in less than ½” gap without the spacer, install the 1" spacer.
5. Install New System: Mount the assembled BST BSSP system to the frame using the provided hardware. Ensure all bolts are tightened to the manufacturer's recommended torque specifications (refer to your vehicle's service manual for specific torque values if available, or general automotive torque specifications for similar fasteners).
6. Lower Vehicle: Carefully lower the vehicle from the jack stands.
7. Final Check: Verify the installation, ensuring all components are securely fastened and there is adequate clearance. Check the unloaded gap between the rubber spring and axle.

Figure 4: Example of the suspension enhancement system installed on a vehicle.

Operating Principles

The BST BSSP Rear Suspension Rubber Bump Stops Enhancement System operates by providing supplemental spring support to your vehicle's existing suspension. Unlike traditional air springs that require inflation, these hollow rubber springs are passive and react dynamically to load.

• Unloaded Operation: When the vehicle is unloaded, the system maintains a small gap (½” to 1 ½”) between the rubber spring and the axle. This ensures that the primary vehicle suspension handles normal road conditions, preserving the factory ride quality.
• Loaded Operation: As weight is added to the vehicle (e.g., cargo in the bed, trailer tongue weight), the vehicle's frame moves closer to the axle. The rubber springs then engage, progressively compressing to provide additional support. The more the springs compress, the stiffer they become, effectively counteracting sag and maintaining a level stance.

This progressive action helps to distribute the load more evenly, reduce body roll, and improve overall stability and control, especially during towing or hauling.

Maintenance

The BST BSSP Rear Suspension Rubber Bump Stops Enhancement System is designed for minimal maintenance. However, periodic inspection is recommended to ensure optimal performance and longevity:

• Visual Inspection (Every 6 Months or 5,000 Miles):
  • Check the rubber springs for any signs of cracking, tearing, or excessive wear.
  • Inspect the steel mounting brackets for corrosion, bending, or damage.
  • Verify that all mounting hardware (bolts, nuts) is secure and properly torqued. Re-torque if necessary.
  • Ensure the recommended ½” to 1 ½” gap between the rubber spring and axle is maintained when the vehicle is unloaded.
• Cleaning: If the components become excessively dirty, clean them with mild soap and water. Avoid harsh chemicals or solvents that could degrade the rubber material.

Should any damage or excessive wear be observed, contact the manufacturer or a qualified service professional for replacement parts or advice.

Troubleshooting

This section addresses common issues you might encounter with your suspension enhancement system.

If you experience issues not covered here, or if troubleshooting steps do not resolve the problem, please contact BST BSSP customer support.

Specifications

Warranty Information

Specific warranty terms and conditions for the BST BSSP Rear Suspension Rubber Bump Stops Enhancement System are provided by the manufacturer. Please refer to the documentation included with your purchase or contact BST BSSP directly for detailed warranty information.

Customer Support

For technical assistance, questions regarding installation, or to inquire about replacement parts, please contact BST BSSP customer support. You can find more information and contact details by visiting the official BST BSSP store:

BST BSSP Official Store on Amazon