Assembly instructions (continued) – Wilwood Dynapro Radial Big Brake Front Brake Kit (Hat) User Manual

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Assembly Instructions (Continued)

•With the larger I.D. side of the rotor (7) facing away from the hat (8), attach rotor (7) to hat (8) using bolts (10) as shown in Figure 1.

Using an alternating sequence, remove bolts one at a time, apply red Loctite® 271to the threads, and torque to 25 ft-lb.

•Slide the rotor/hat assembly onto the axle hub. Installthree lug nuts (finger tighten) to keep the rotor/hat assembly in place while

continuing with the installation.

NOTE: Please reference the caution statement at the beginning of the assembly instructions. Install one shim (14) over each pre-

installed stud (15) on the radial mount bracket (1). Slide the caliper (11) in place over the studs and rotors and install the washer (13)
and lock nut (12) to hold the caliper in place. Snug the lock nuts (12) and check that the rotor (7) is centered in the caliper (11). Add
or subtract .015" shims (6) as necessary between the spacer and the spindle to center the caliper (7).

•Remove the caliper quick-clip pad retainer from the caliper. Remove the protective material from the adhesive side of the anti-squeal

shims (9) and place against the backing plate side of the brake pads (3) utilizing the contour of the backing plate as a guide. Secure
material to backing plate by bending the four tabs over the edge of the backing plate. Slide the brake pads (3) with the shims into
place. They should install easily without interference. Check that the outside radius of the brake pad is aligned with the outside
diameter radius of the rotor face. Add or subtract shims (14) between the caliper and mount bracket to gain the proper alignment.
Reinstall the quick-clip pad retainer.

•Remove the lug nuts that were holding the hat in place. Install the wheel. Check to see that the wheel rotates freely without

interference.

•Once all clearances have been checked, remove the wheel, caliper, hat, and rotor from the spindle and hub. Secure the caliper

mounting bracket (1) to the spindle using red Loctite

®

271. Torque the bolts to 47 ft-lbs. Reinstall the hat and rotor assembly and again

use several lug nuts to hold it in place. Lubricate caliper mounting studs and nuts with lightweight oil, reinstall the caliper, torque the
caliper nuts (12) to 30 ft-lb.

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 220-8339,
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.

•Bleed the brake system. Reference the general information and recommendations on page 5 for proper bleeding instructions.

•Remove the lug nuts that were used to hold the rotor/hat assembly in place during caliper installation. Install the wheel and lug nuts,

torque to OEM specifications.

•Repeat the entire procedure for the other wheel.

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