Wilwood Dynapro Dust-Boot Big Brake Front Brake Kit (Hub) - Manual (Page 4)

•WARNING: The wheel contact surfaces must seat completely on the face of the
hub. If any contact surfaces overhang the outside diameter of the hub face, a 6.60”
diameter x .20” thick steel spacer (Wilwood P/N 300-11961, sold separately) MUST
be used between the wheel and the hub.
•To prevent damage to the hub face, a 6.15” diameter x .09” thick hub shield
(Wilwood P/N 300-10716, sold separately) should be used with any stamped steel
wheels that do NOT overhang the outside diameter of the hub face.
•Always tighten lug nuts to the wheel manufacturer’s specifications.
•Always recheck the lug nuts after test driving the vehicle at safe speeds. If they
are NOT still tight, inspect the wheel-to-hub contact surfaces for damage and/or
incomplete contact.
•As routine maintenance, periodically remove the wheels and inspect the wheel-to-
hub contact surfaces for damage.
•It is the installer’s responsibility to ensure that the wheels used with this hub kit are
properly and securely installed. Some wheels may NOT be compatible with the
hub in this kit.
Disassembly Instructions
•Disassemble the original equipment front brakes:
Raise the front wheels off the ground and support the front suspension
according to vehicle manufacturer’s instructions.
Remove the front wheels and completely disassemble the stock brake system down to the bare spindles. Save the Original
Equipment Manufacturer (OEM) spindle nuts and nut locks (if any).
•Remove any nicks or burrs on the spindle mount faces that may interfere with the installation of the new brake components.
•Clean and de-grease the spindles and saved components.
Assembly Instructions (numbers in parenthesis refer to the part list/diagram on the preceding page):
CAUTION: All mounting bolts must fully engage insert nuts. Be sure to check that all bolts are either flush or protruding through flanged
side of insert nut after shimming, Figure 4.
•NOTE: 1964-66 spindles may require the following modifications (reference Figure 1 and Figure 3):
Top anchor pin hole (Z) must be drilled and tapped to the dimensions as outlined in Figure 3. Bottom
rear steering arm bolt hole (Y) in the spindle and steering arm must be enlarged to .50” by drilling.
A 1/2-20 backing nut (not supplied in kit) will need to be acquired to torque bracket / steering arm
bolt (supplied in kit).
•Install wheel studs (7) into the hub (8), Photo 1. Torque to 77 ft-lb. NOTE: There are two five lug
patterns in the hub (5 x 4.50 and 5 x 4.75). Ensure the correct hub stud pattern is being used to fit
the wheel application.
•Pack the large inner bearing cone (9) with high temperature disc brake bearing grease (available
from your local auto parts store) and install into the backside of the hub (8), Photo 2.
•Install the grease seal (10) by pressing into the backside of the hub (8), flush with the end of the hub,
Photo 2.
•Orient the rotor (12) and the rotor adapter (11) as shown in Figure 1 and Photo 3. Attach the rotor to the adapter using bolts (13). Using
an alternating sequence, apply red Loctite® 271 to the threads, and torque to 25 ft-lb.
Page 4
.02 (0,51)
CENTER
LINE OF
WHEEL
1.00 (25,4) RADIUS
4.04
(102,6)
3.13
(79,5)
1.90 (48,3)
.38 (9,6) RADIUS
WHEEL MOUNT
SURFACE
7.05
(179,1)
NOTE: A MINIMUM OF .080” CLEARANCE MUST BE MAINTAINED
BETWEEN THE WHEEL AND CALIPER IN ALL AREAS
.81 (20,6) ROTOR THICKNESS
CALIPER
CALIPER
Figure 2. Wheel Clearance Diagram
General Information (Continued), Disassembly and Assembly Instructions
90°
.578 DIA
.032
.642 DIA
Drill a .578" diameter hole 1.25" deep
and tap 5/8-18 (fine thread).
Countersink .642" x 90°
Figure 3. Drill and Tap Detail