Wilwood Promatrix Front and Rear Replacement Rotor Kit - Manual (Page 3)

Installation of this kit should ONLY be performed by persons experienced in the installation and
proper operation of disc brake systems. Before installation begins, please read the complete
procedure thoroughly to familiarize yourself with the process, and double check the following items
to ensure a trouble-free installation.
•Make sure this is the correct kit to fit the exact make and model year. This kit is specifically designed
as a direct bolt-on OE replacement for Aston Martin model years 2005 - present.
•Verify the hat lug pattern in this kit matches the stud pattern of the vehicle’s wheels.
•Inspect the package contents against the parts list to ensure that all components are included.
Disassembly Instructions (procedure is the same for front and rear)
•Disassemble the original equipment front and rear brakes:
Raise the front/rear wheels off the ground and support the suspension according to the vehicle
manufacturer’s instructions.
Remove the front/rear wheel, caliper, and rotor. Do not disconnect brake hoses. Remove all nicks or burrs on the hub/axle flange
face and registration diameter.
Assembly Instructions (numbers in parenthesis refer to the part list/diagram on the preceding page):
Procedure is the same for front and rear.
• Orient the rotor (1/2) and the hat (3/4) as shown in Figure 1 and Photo 1. Attach rotor to hat using
bolts (5) and washers (6). Using an alternating sequence, apply red Loctite® 271 to the threads
and torque bolts to 155 in-lbs. For an added measure of security, the bolts may be safety wired
using standard 0.032 inch diameter stainless steel safety wire as shown in Figure 2. Please refer
to Wilwood’s data sheet DS-386 (available at
www.wilwood.com/Pdf/DataSheets/ds386.pdf ) for
complete safety wire installation instructions.
•Slide the hat/rotor assembly onto the axle hub. NOTE: The hat must fit flush against the axle hub
flange or excessive rotor run out may result. The hub must be free from any rust, debris, casting
burrs, machining irregularities, etc. Reinstall the original retaining screws and torque to
manufacturer’s specification.
•NOTE: For best performance and service life, Wilwood recommends using new brake pads with new
replacement rotors.
•reinstall the caliper and torque the mounting bolts manufacturer’s specification.
•Install the wheel and torque the lug nuts to manufacturer’s specification. Check to see that the wheel rotates freely without interference.
General Information, Disassembly, and Assembly Instructions
Page 3
Photo 1
BEGIN BY SLIDING THE 0.032"
DIAMETER WIRE THROUGH TWO OF
THE HOLES (LEFT) THAT ARE 180°
APART. TWIST THE WIRE AS
SHOWN (BELOW) USING SAFETY
WIRE PLIERS. NOW SLIDE ONE
WIRE THROUGH TWO OF THE
HOLES (180° APART) AND WRAP THE
OTHER WIRE AROUND THE BOLT.
TWIST THE WIRES TOGETHER TO
FORM A PIGTAIL. SEE DS-386 FOR
COMPLETE DETAILS.
Figure 2. Safety Wire Diagram
Additional Information and Recommendations
•Fill and bleed the new system with Wilwood Hi-Temp° 570 grade fluid or higher. For severe braking or sustained high heat operation,
use Wilwood EXP 600 Plus Racing Brake Fluid. Used fluid must be completely flushed from the system to prevent contamination.
NOTE: Silicone DOT 5 brake fluid is NOT recommended for racing or performance driving.
•Properly bleed the brake system according to the vehicle manufacturer’s instructions, generally beginning with the caliper farthest from
the master cylinder. NOTE: When using a new master cylinder, it is important to bench bleed the master cylinder first.
•Test the brake pedal. It should be firm, not spongy and stop at least 1 inch from the floor under heavy load.
If the brake pedal is spongy, bleed the system again.
If the brake pedal is initially firm, but then sinks to the floor, check the system for fluid leaks. Correct the leaks (if applicable) and
then bleed the system again.
•NOTE: With the installation of after market disc brakes, the wheel track may change depending on the application. Check your wheel
offset before final assembly.
•If after following the instructions, you still have difficulty in assembling or bleeding your Wilwood disc brakes, consult your local chassis
builder, or retailer where the kit was purchased for further assistance.