1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your BST BSSP 6061 CNC Billet Aluminum Front Upper Control Arms. These control arms are designed to improve suspension geometry and allow for additional wheel travel, particularly when lifting your vehicle by 2-4 inches. Please read this manual thoroughly before installation and retain it for future reference.
2. Safety Information
WARNING: Automotive suspension work requires specialized tools and knowledge. Improper installation can lead to serious injury or vehicle damage. If you are not confident in your ability to perform this installation, seek assistance from a qualified professional mechanic.
- Always wear appropriate personal protective equipment (PPE), including safety glasses and gloves.
- Ensure the vehicle is securely supported on jack stands on a level surface before beginning any work. Never rely solely on a jack.
- Disconnect the vehicle's battery before starting electrical work, if applicable.
- Refer to your vehicle's service manual for specific torque specifications and procedures.
- Keep hands and clothing clear of moving parts.
3. Package Contents
Verify that all components are present and undamaged before beginning installation.
- 2x BST BSSP 6061 CNC Billet Aluminum Front Upper Control Arms (Left and Right)
- Pre-installed Adjustable Ball Joints
- Pre-installed Rod End Bearing Bushings
- Associated hardware (nuts, bolts, cotter pins)
Figure 3.1: Included BST BSSP Front Upper Control Arms.
4. Compatibility
These control arms are compatible with the following vehicles:
- 2005-2021 Toyota Tacoma 6-Lug 2WD
- 2005-2021 Toyota Tacoma 6-Lug 4X4 4WD
- Designed for vehicles with a 2-4 inch suspension lift.
Note: These control arms are specifically for 6-lug models only.
5. Features
- 6061 CNC Billet Aluminum Construction: Manufactured from high-strength 6061 billet aluminum for superior durability and reduced weight compared to traditional stamped or tubular arms.
Figure 5.1: Comparison highlighting solid forged billet aluminum construction.
- Adjustable Ball Joints: Allows for on-vehicle camber and caster adjustment, crucial for proper alignment after a suspension lift.
Figure 5.2: Adjustable ball joint for camber and caster.
- Delta Joint Technology: Combines the durability and weather resistance of a traditional ball joint with the performance characteristics of a uniball, offering enhanced articulation and longevity.
Figure 5.3: Detail of the Delta Joint.
- Rod End Bearing Bushings: Upgraded bushings provide precise control and durability.
Figure 5.4: Adjustable bushings for enhanced performance.
- Protective Dust Boot: Pre-installed dust boot shields socket components from wear-causing contaminants, extending the life of the ball joint.
Figure 5.5: Ball joint with protective dust boot.
6. Installation Instructions
6.1 Pre-Installation Checks
- Ensure you have all necessary tools, including a torque wrench, sockets, wrenches, and a jack with jack stands.
- Inspect the new control arms for any shipping damage.
- Familiarize yourself with the vehicle's suspension components.
6.2 Step-by-Step Installation
- Park the vehicle on a level surface and engage the parking brake.
- Loosen the lug nuts on the front wheels.
- Jack up the front of the vehicle and support it securely with jack stands under the frame.
- Remove the front wheels.
- Support the lower control arm with a floor jack to relieve tension on the upper control arm.
- Remove the cotter pin and castle nut from the upper ball joint.
- Separate the upper ball joint from the steering knuckle using a ball joint separator tool.
- Remove the bolts securing the upper control arm to the frame.
- Carefully remove the old upper control arm.
- Install the new BST BSSP upper control arm, aligning the mounting points with the frame. Insert the frame bolts but do not fully tighten them yet.
- Insert the new ball joint into the steering knuckle. Install the castle nut and tighten to vehicle manufacturer specifications. Install a new cotter pin.
- With the vehicle's weight on the suspension (or simulated by the floor jack), tighten the frame bolts to the manufacturer's specified torque. This prevents bushing bind.
- Repeat the process for the other side.
- Reinstall the wheels and tighten lug nuts to manufacturer specifications.
- Lower the vehicle completely.
6.3 Post-Installation
After installation, it is critical to have a professional wheel alignment performed. The adjustable ball joints allow for precise camber and caster adjustments, which are essential for proper handling, tire wear, and steering feel, especially after a lift kit installation.
7. Operating and Adjustment
These control arms are designed to optimize suspension geometry for lifted vehicles. The primary "operation" involves ensuring they are correctly installed and aligned.
7.1 Camber and Caster Adjustment
The adjustable ball joints on these control arms allow for fine-tuning of camber and caster angles. This adjustment should be performed by a qualified alignment technician using specialized equipment. The technician will adjust the ball joint position to achieve the desired alignment specifications for your lifted vehicle.
Figure 7.1: Detail of the adjustable bushing for alignment.
8. Maintenance
Regular inspection and maintenance will ensure the longevity and performance of your control arms.
- Periodic Inspection: Every 5,000-10,000 miles or during routine vehicle service, inspect the control arms, ball joints, and bushings for signs of wear, damage, or looseness.
- Check Torque: Verify that all mounting bolts and ball joint nuts are torqued to specification. Re-torque if necessary.
- Ball Joint Boots: Inspect the protective dust boots for tears or cracks. Damaged boots can allow contaminants to enter the ball joint, leading to premature wear. Replace if damaged.
- Cleaning: Keep the control arms free from excessive dirt and debris, especially around the ball joints and bushings.
9. Troubleshooting
If you experience any issues after installation, consider the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Uneven Tire Wear | Incorrect wheel alignment (camber/caster) | Have a professional alignment performed. |
| Steering Pulls to One Side | Incorrect wheel alignment, loose components | Check all fasteners for proper torque. Get a professional alignment. |
| Clunking/Rattling Noise | Loose hardware, worn ball joint/bushing | Inspect all mounting points and ball joints. Re-torque or replace worn components. |
| Difficulty Adjusting Alignment | Seized components, improper tools | Ensure components are clean. Use appropriate tools. Consult a professional. |
10. Specifications
- Material: 6061 CNC Billet Aluminum
- Color: Red
- Auto Part Position: Front Upper
- Lift Compatibility: 2-4 inches
- Ball Joint Type: Adjustable Delta Joint
- Bushings: Rod End Bearing Bushings
- Manufacturer Part Number: BS-104-049
11. Quality Assurance Video
This video provides a glimpse into the manufacturing process and quality of the BST BSSP control arms, showcasing the attention to detail in production.
Video 11.1: Manufacturing process of BST BSSP control arms.
12. Warranty Information
BST BSSP provides a One Year Manufacturer Warranty on these 6061 CNC Billet Aluminum Front Upper Control Arms from the date of purchase. This warranty covers defects in materials and workmanship under normal use and service. It does not cover damage resulting from improper installation, abuse, neglect, accident, or unauthorized modifications.
For warranty claims, please contact BST BSSP customer support with your proof of purchase.
13. Support
For technical assistance, installation questions, or warranty inquiries, please visit the official BST BSSP store on Amazon or contact their customer service directly.
Online Store: BST BSSP Amazon Store
