Wilwood Forged Superlite 4 Big Brake Front Brake Kit (Hub) - Manual (Page 5)

Page 5
Assembly Instructions (Continued)
•NOTE: OEM rubber brake hoses generally cannot be adapted to Wilwood calipers. The caliper
inlet fitting is a 1/8-27 NPT. The preferred method is to use steel adapter fittings at the caliper,
either straight, 45 or 90 degree and enough steel braided line to allow for full suspension travel
and turning radius, lock to lock. Carefully route lines to prevent contact with moving
suspension, brake or wheel components. Wilwood hose kits are designed for use in many
different vehicle applications and it is the installer's responsibility to properly route and ensure
adequate clearance and retention for brake hose components. Wilwood offers a hose kit, P/N
220-9481, which includes hoses, fittings, etc., all in one package for this application.
•Specified brake hose kits may not work with all Years, Makes and Models of vehicle that this
brake kit is applicable to, due to possible OEM manufacturing changes during a production
vehicle's life. It is the installer's responsibility to ensure that all fittings and hoses are the correct
size and length, to ensure proper sealing and that they will not be subject to crimping, strain
and abrasion from vibration or interference with suspension components, brake rotor or wheel.
•In absence of specific instructions for brake line routing, the installer must use his best
professional judgment on correct routing and retention of lines to ensure safe operation. Test
vehicle brake system per the 'minimum test' procedure stated within this document before
driving. After road testing, inspect for leaks and interference. Initially after install and testing,
perform frequent checks of the vehicle brake system and lines before driving, to confirm that
there is no undue wear or interference not apparent from the initial test. Afterwards, perform
periodic inspections for function, leaks and wear in a interval relative to the usage of vehicle.
•Repeat assembly procedure for the other wheel.
• Bleed the brake system. Reference the general information and recommendations below for
proper bleeding instructions.
•Please read the following concerning balancing the brake bias on 4 wheel disc vehicles.
This Mustang II spindle kit can be operated using the stock OEM disc brake master
cylinder. However, as with most suspension and rear brake and/or tire modifications (from
OEM specifications), changing the brakes may alter the front to rear brake bias. Rear
brakes should not lock up before the front. Brake system evaluation and tests should be
performed by persons experienced in the installation and proper operation of brake
systems. Evaluation and tests should be performed under controlled conditions. Start by
making several stops from low speeds then gradually work up to higher speeds. Always
utilize safety restraint systems while operating vehicle.
For competition or modified vehicles, please see biasing instructions below.
END OF BOLT
HEAD
OF BOLT
HEAD
OF BOLT
HEAD
OF BOLT
CORRECT
END OF BOLT IS FLUSH WITH, OR SLIGHTLY
PROTRUDING FROM END OF CLINCH NUT
WRONG
END OF BOLT IS BELOW END OF CLINCH NUT
WRONG
END OF BOLT IS PROTRUDING TOO FAR
FROM END OF CLINCH NUT AND MAY
INTERFERE WITH MOVING PARTS
END OF
CLINCH NUT
END OF
CLINCH NUT
END OF
CLINCH
NUT
END OF BOLT
END OF
BOLT
Figure 3.
Clinch Nut Engagement Diagram
Balancing the Brake Bias on 4 Wheel Disc Vehicles
•OE Style or Single Mount Race Pedal with Tandem Outlet Master Cylinder:
Front to rear caliper piston sizes, rotor diameters, and pad compounds must be initially configured to provide the correct range of vehicle
bias when using a single bore / tandem outlet master cylinder. If excessive rear brake bias is experienced, an inline adjustable
proportioning valve can be used to decrease the rear line pressure to help bring the vehicle into balance. If excessive front brake bias
is experienced, first consideration should be given to increasing the rear brake bias to bring the vehicle into overall balance.
•Race Pedal with Dual Master Cylinders and Balance Bar:
Master cylinders must be sized to match the calipers and allow the pedal balance bar to operate near the center of its travel. If it is not
possible to fine tune the bias within the adjustable range of the balance bar, then consideration must be given to changing a master
cylinder bore size or some other aspect of the brake system to bring the car into balance. Larger bore master cylinders will generate
less pressure while decreasing pedal travel. Smaller bores master cylinders will generate higher line pressures with an increase in pedal
travel.