Wilwood Dynapro Radial Rear Brake Kit For OE Parking Brake - Manual (Page 4)

Modificatiion Instructions
• Chisel the spot welds to remove the dust shield from the backing
plate as shown in Photo 1.
•Utilizing the template found on the last page of this document,
mark an outline of where to grind away excess material from the
OE mounting lugs that will interfere with the installation of the
new Wilwood caliper bracket. Grind as shown in Photo 2.
Assembly Instructions (numbers in parenthesis refer to the
parts list and Figure 1 on the preceding pages):
• The caliper mount bracket (1) should initially be installed with
clean, dry threads on the mounting bolts. Orient the bracket as
shown in Figure 1 and Photo 3, and install using washers (15)
and bolts (2). Initially place one shim (3) on each bolt between
the bracket and upright, Figure 1. Temporarily tighten the
mounting bolts. NOTE: The bracket must fit squarely against the
mount bosses on the upright.
Inspect for interference from
casting irregularities, machining ridges, burrs, etc. Later, after
the caliper alignment has been checked, the mount bolts will be
secured using red Loctite
® 271.
• Orient the rotor (5) and the hat (6) as shown in Figure 1 and
Photo 4. Attach rotor to hat using bolts (8) and washers (7).
Using an alternating sequence, apply red Loctite
® 271 to the
threads, and torque to 140 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 3.
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 rotor registration adapter (4) onto the axle register on
the axle hub with the smaller O.D. facing outward, Photo 5.
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. Install three lug nuts (finger tight) to keep the
hat/rotor assembly in place while continuing with the installation.
•Mount the caliper (9) onto the bracket (1) using bolts (10) and
washers (11), Figure 1 and Photo 7. Initially place two .035” thick
shims (12) on each bolt between the caliper and bracket as
shown in Figure 1 and Photo 6. Temporarily tighten the bolts and
view the rotor through the top opening of the caliper. The rotor
should be centered in the caliper, Photo 8. If not, adjust by adding
or subtracting shims (3) between the bracket and the upright.
Once the caliper alignment is correct, remove the bracket
mounting bolts one at a time, apply red Loctite
® 271 to the
threads, and torque to 35 ft-lb.
•Install the disc brake pads (13) into the caliper, with the friction
material facing the rotor, as shown in Photo 9. Check that the
top of the brake pad is flush with the outside diameter of the
rotor, Photo 10. If not, adjust by adding or subtracting shims (12)
between the caliper and the bracket. After the caliper pad height
Page 4
Assembly Instructions
Photo 3 Photo 4
Photo 2
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 3. Safety Wire Diagram Photo 5
Small
O.D.
toward
rotor/hat
Photo 7 Photo 6
Photo 1
(Generic Example Shown)