Wilwood Forged Dynalite Rear Parking Brake Kit - Manual (Page 4)

Disassembly Instructions:
•Disassemble the original equipment rear brakes:
Raise the rear wheels off the ground and
support the rear suspension according to the
vehicle manufacturer’s instructions.
Remove the rear wheels and disassemble the
drum brake assembly down to the bare axle.
• Remove any nicks or burrs on the axle housing
flange, as well as the axle flange, that may interfere
with the installation of the new brake components.
• Clean and de-grease the axle and axle housing
flange.
Assembly Instructions (numbers in parenthesis refer to the parts list, and Figure 1 on the preceding pages): CAUTION: All mounting
bolts must fully engage clinch nuts. Be sure to check that all bolts are either flush or protruding through flanged side of clinch nut after
shimming, Figure 4.
•Orient the bracket assembly (1) as shown in Figure 1 and Photo 1 and slide it onto the axle. Insert
the axle and bracket into the axle housing. Ensure that the bracket assembly backing plate fits flush
against the axle housing flange. Secure bracket assembly to the axle housing flange using the
Original Equipment Manufacturer (OEM) bolts and nuts, Figure 1. Apply red Loctite® 271 to the
OEM bolt threads and torque to OEM specifications.
•Slide the rotor registration adapter (9) onto the axle register on the axle flange with the smaller O.D.
facing toward the rotor/hat (2), Photo 2. Align the correct hole pattern in the rotor/hat with the stud
pattern on the axle flange and slide into place, Figure 1 and Photo 3. NOTE: The rotor/hat must fit
flush against the axle flange or excessive rotor run out may result. Install three lug nuts (finger tight)
to keep the rotor/hat assembly in place while continuing with the installation. NOTE: Some OEM
and after market axles come with stud sizes larger than 0.50” diameter. Verify stud size and have
a qualified machine shop drill the bolt circle of the hat/rotor to the correct stud size, if necessary.
•NOTE: Please reference the caution statement at the beginning of the assembly instructions. Mount the caliper (3) onto the caliper
mounting bracket (1) using bolts (5) and washers (4), as shown in Figure 1. Initially place two .035” thick shims (6) on each bolt between
the caliper and the bracket, Photo 4. Temporarily tighten the mounting bolts and view the rotor (2) through the top opening of the caliper.
The rotor should be centered in the caliper, Photo 5. If not, adjust by adding or subtracting shims between the bracket and the caliper.
Always use the same amount of shims on each of the two mounting bolts. NOTE: The end of each bolt must be flush with or slightly
protruding from the head of the clinch nut, as shown in Figure 4. If necessary place spare shims between washer (4) and caliper
Page 4
Assembly Instructions
IMPORTANT:
• To ensure maximum performance from your parking brake system, the cables must be routed as straight as
possible. Bends in the cable can significantly reduce efficiency and thus reduce pull force at the brake. Tight
bends must be avoided with a minimum recommended bend radius of 6" to 8".
• Cables should be properly restrained to prevent "straightening" of bends when tension is applied. Restrain
movement of cable by affixing the cable sheath to body or chassis by fitting cable clamps at various points
over the length of cable or by using original equipment cable attachments points. The clamping method
chosen will require that cable sheath be held tightly without movement, crushing or causing interference to the
internal cable.
• Cables must be initially pre-stretched by multiple applications of the brake handle, then re-adjusted to correct
tension.
Disassembly Instructions
Figure 3. Axle Flange
Maximum Dimension
MAXIMUM
DIA 6.61"
TO FIT
WILWOOD
HAT
2.80”
REGISTER
.050 X 45°
CHAMFER
Table 1. Center Register Adapters
This kit includes a 3.06” center I.D. hat or rotor assembly and a 2.80” hub
register adapter ring to accommodate the installation of this kit on axles of
either dimension. For axles with different center register diameters, please
consult the table below for optional adapter ring sizes.
PART NO. REGISTER I.D. NOTE
NO ADAPTER USED
300-11732
300-11962
300-11338
300-11337
300-11532
300-11803
300-11901
300-11653
300-11339 3.06”
2.86”
2.84”
2.82”
2.80”
2.78”
2.52”
2.50”
2.18”
2.00” ROTOR CENTER HOLE I.D.
OPTIONAL
OPTIONAL
OPTIONAL
SUPPLIED WITH KIT
OPTIONAL
OPTIONAL
OPTIONAL
OPTIONAL
OPTIONAL (Machine to fit I.D.)
Photo 1