Wilwood Dynapro Dust-Boot Big Brake Front Brake Kit (Hub) - Manual (Page 5)

Page 5
Assembly Instructions (Continued)
•Mount the adapter/rotor assembly (11/12) to the hub (8) using
bolts (14), as shown in Figure 1 and Photo 4. Using an
alternating sequence, apply red Loctite® 271 to the threads, and
torque to 55 ft-lb.
•Attach caliper mounting bracket (1) to spindle face using lower
bolt (4), washer (3), and a .090” thick spacer (2) positioned
between the bracket and the spindle face, as shown in Figure 1.
Secure bolt on the backside of the steering arm with nut (26).
Finger tighten. Install upper bolt (6) (for drum spindle) or bolt
(6A) with spacer (2A) between bracket and spindle (for disc
brake spindle). Ensure that the flanged heads of the clinch nuts
in the bracket are facing outboard. Temporarily tighten the
mounting bolts and install the new hub/rotor assembly (8/12).
Check that the bracket is aligned parallel to the rotor, Photo 5. If
not, adjust by adding shim washers (3 and/or 5) between spacers
(2 and/or 2A) and the bracket, Figure 1. Once the bracket
alignment is correct, remove the bolts one at a time, apply red
Loctite® 271 to bolt threads, and torque upper bolt (6 or 6A) to
120 ft-lb. and lower bolt (4) to 77 ft-lb.
•Pack the small outer bearing cone (15) with high temperature
disc brake bearing grease and install into hub (8). Slide the
hub/rotor assembly onto the spindle. Secure using spindle
washer (16) and OEM spindle nut, Photo 6. Adjust bearings per
OEM specifications. Install saved OEM nut lock (if any) and a
new cotter pin (not included).
•Install the dust cap (17) onto the hub (8), Photo 7. Friction
created by the o-ring (18) on the dust cap (17) keeps it from
unscrewing. NOTE: The O.D. of the existing OEM spindle
washer may be larger than the I.D. of the dust cap not allowing it
to seat against the hub face. Therefore, use the spindle washer
(16) supplied with the kit instead of the OEM washer.
•NOTE: Please reference the caution statement at the beginning
of the assembly instructions. Mount the caliper (19) onto the
caliper bracket (1) using washers (20) and bolts (21), as shown
in Figure 1. Initially place two .035” thick shims (22) on each bolt
between the caliper and the bracket, Photo 8. Temporarily tighten
the mounting bolts and view the rotor (12) through the top
opening of the caliper. The rotor should be centered in the
caliper, Photo 9. If not, adjust by adding or subtracting shims
between the bracket and the caliper. NOTE: The end of the bolt
must be flush with or slightly protuding from the head of the clinch
nut. See Figure 4. Place spare shims (22) between washer and
caliper mounting ear to achieve the proper mounting fastener
configuration. Always use the same amount of shims on each of
the two mounting bolts. Once the caliper alignment is correct,
remove the bolts one at a time, apply red Loctite® 271 to bolt
threads, and torque to 40 ft-lb.
•Install the disc brake pads (23) into the caliper, with the friction
material facing the rotor (12) and secure in place using the pad
clip retainer (24), Photo 10.
Photo 1
Photo 2
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 4. Clinch Nut
Engagement Diagram
Photo 3 Photo 4
Photo 6 Photo 5