1. Introduction and Overview
This manual provides essential information for the installation, operation, and maintenance of your Wilwood 140-9917 Forged Dynalite Pro Series 11" Front Hub Big Brake Kit. This kit is designed to enhance braking performance for traditional non-ABS spindle applications on American muscle cars, vintage rods, and heavy-weight drag cars.
The Forged Dynalite (FDL) Pro-Series Front Hub Kits offer a comprehensive disc brake upgrade solution. These kits are engineered for superior performance, providing improved clamping force and stopping power. They are versatile and can be configured to meet the braking requirements of various applications, from daily drivers to competition vehicles.
Most kits are designed for straightforward installation with common hand tools and typically do not require modifications. Please review all instructions and diagrams carefully before beginning installation.
Figure 1: Assembled Wilwood 140-9917 Forged Dynalite Pro Series 11" Front Hub Big Brake Kit.
2. Product Components
The Wilwood 140-9917 Forged Dynalite Pro Series 11" Front Hub Big Brake Kit includes the following primary components:
- Forged Billet Dynalite Calipers (Black)
- 11-inch Rotors
- Front Hubs
- Brake Pads
- Mounting Brackets and Hardware
- Bearings and Seals
Please note that this brake kit does not include brake lines. Wilwood Flexline brake lines (e.g., # WIL-220-8307) are required to complete the installation and must be ordered separately.
Figure 2: Exploded view of Wilwood 140-9917 Big Brake Kit components.
3. Compatibility and Fitment
This brake kit is compatible with Art Morrison and Roadster Shop Spindles. It is designed for traditional non-ABS spindle applications.
Wheel Clearance: This brake kit may require 14-inch or larger wheels. It is crucial to refer to the provided wheel clearance diagram to verify fitment with your specific wheels. A minimum of 0.080" clearance must be maintained between the wheel and caliper in all areas.
Hub Offset: This kit has a hub offset of +0.10 inches. This offset will move the wheels inward or outward from the fender by this amount on each side of the vehicle.
Figure 3: Wheel clearance diagram and dimensional specifications.
4. Installation Instructions
Installation of this brake kit should be performed by a qualified automotive technician. Improper installation can lead to brake system failure and serious injury.
4.1 Pre-Installation Checks
- Verify all components listed in Section 2 are present and undamaged.
- Confirm vehicle compatibility and wheel clearance as detailed in Section 3.
- Ensure you have the necessary tools and Wilwood Flexline brake lines (e.g., WIL-220-8307) and Wilwood 570 Brake Fluid.
4.2 General Installation Steps (Summary)
- Safely lift and support the vehicle. Remove existing wheels and brake components.
- Install the new hubs onto the spindle, ensuring bearings are properly seated and torqued according to Wilwood specifications (refer to detailed instructions provided with the kit).
- Mount the rotors to the hubs using the provided hardware.
- Attach the caliper mounting brackets to the spindle.
- Install the calipers onto the mounting brackets, ensuring proper alignment over the rotor.
- Insert brake pads into the calipers.
- Connect the Wilwood Flexline brake lines to the calipers and the vehicle's hard lines. Ensure all connections are secure and free of leaks.
- Bleed the entire brake system thoroughly using Wilwood 570 Brake Fluid to remove all air.
- Reinstall wheels and torque lug nuts to vehicle manufacturer specifications.
- Perform a test drive in a safe area to ensure proper brake function before normal operation.
Note: This kit can be used with either manual or power boost master cylinders. Consult your vehicle's specific requirements.
5. Operation
Once properly installed and bled, the Wilwood Forged Dynalite Pro Series Big Brake Kit will provide enhanced braking performance. Familiarize yourself with the improved stopping power and pedal feel in a controlled environment before driving in traffic.
Always ensure your brake system is in optimal condition. Any changes in brake performance, such as a spongy pedal, excessive noise, or reduced stopping power, should be investigated immediately by a qualified technician.
6. Maintenance
Regular maintenance is crucial for the longevity and performance of your brake system. Follow these general guidelines:
- Brake Fluid: Check brake fluid level regularly and replace it according to your vehicle manufacturer's recommendations or if it appears contaminated. Use only high-quality brake fluid like Wilwood 570.
- Brake Pads: Inspect brake pads for wear during routine service. Replace pads when they reach their minimum thickness to maintain optimal braking performance and prevent rotor damage.
- Rotors: Inspect rotors for cracks, excessive wear, or warping. Replace rotors if they are damaged or fall below minimum thickness specifications.
- Calipers: Check calipers for leaks, proper piston movement, and secure mounting.
- Hoses and Lines: Inspect brake lines and hoses for any signs of wear, cracks, or leaks. Replace damaged components immediately.
- Hardware: Ensure all mounting bolts and hardware are secure and torqued to specifications.
7. Troubleshooting Common Issues
If you experience any issues with your brake system, consult a qualified technician. Below are some common symptoms and potential causes:
| Symptom | Possible Cause | Action |
|---|---|---|
| Spongy Brake Pedal | Air in the brake lines, low brake fluid, faulty master cylinder. | Bleed brake system, check fluid level, inspect master cylinder. |
| Excessive Brake Noise (Squealing/Grinding) | Worn brake pads, contaminated pads/rotors, improper installation, worn rotors. | Inspect pads and rotors, clean components, ensure proper installation. |
| Reduced Braking Performance | Worn pads/rotors, brake fluid issues, caliper malfunction. | Inspect entire brake system, check fluid, consult technician. |
| Brake Pulling to One Side | Uneven pad wear, sticking caliper, contaminated brake fluid, hydraulic issue. | Inspect calipers and pads, check brake lines, consult technician. |
8. Product Specifications
| Specification | Detail |
|---|---|
| Brand | Wilwood |
| Model Number | 140-9917 |
| Brake Kit Type | Forged Dynalite Pro Series Front Hub Big Brake Kit |
| Rotor Diameter | 11 inches |
| Caliper Color | Black |
| Compatibility | Art Morrison & Roadster Shop Spindles (non-ABS) |
| Hub Offset | +0.10 inches |
| Minimum Wheel Size | 14 inches (verify with clearance diagram) |
| Item Weight | Approximately 40 pounds |
| Package Dimensions | 13 x 13 x 11 inches |
| Assembly Required | No (referring to the kit as a whole, but installation is required) |
9. Warranty and Support
For specific warranty information regarding your Wilwood brake kit, please refer to the documentation provided by Wilwood or contact Wilwood directly. General product support and return policies are typically handled by the seller.
Important Notes from Seller (Accesspeed):
- Accesspeed does not accept returns for assembled, installed, or damaged merchandise.
- It is essential to verify that this product will fit your application prior to ordering.
- Accesspeed does not cover shipping costs for returned items.
- In case of a problem with the item received, Accesspeed will work with the manufacturer (Wilwood) to facilitate a replacement.
- For any inquiries or assistance, please contact Accesspeed customer service.