Wilwood Dynapro 6 Big Brake Front Brake Kit (Hub) - Manual (Page 4)

General Information (Continued), Disassembly and Assembly Instructions
•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 the vehicle manufacturer’s instructions.
Remove the center cap, cotter pin, nut lock and the wheel bearing nut and washer. Save the wheel bearing nut and nut lock.
Remove the brake drum and hub assembly, including the wheel bearings. Disconnect the brake hoses from the brake line at the
body. Remove the two upper backing plate retaining nuts and bolts. Remove the two lower ball joint to spindle nuts and bolts. The
backing plate, spindle and ball joint will now separate. Remove the brake backing plate and shoes as an assembly. Reinstall the
front ball joint bolt and nut. Do not tighten at this time. Do not reinstall the rear bolt and nut.
•Clean and de-grease the spindles.
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.
•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).
•Apply red Loctite® 271 to bolt threads (4 and 6, or 6A for disc spindle application) before assembly of the caliper mounting bracket (1).
Mount bracket (1) to dust face plate of spindle using the bottom bolt (4) while positioning washers (2 and 3) between bracket and
spindle face then secure from the backside with washer (25) and nut (26), finger tighten only. Slide the upper bolt (6) through the
bracket (1) and washer (5) (or, for disc brake spindle, use 6A with spacer 2A and washer 5 positioned between bracket and top hole of
spindle face) and into the spindle, torque to 140 ft-lb. Torque bolts(4) to 85 ft-lb. NOTE: Be sure the heads of the bracket (1) insert
nuts are facing outward toward the wheel.
•Install wheel studs (7) into the hub (8). Torque to 77 ft-lb. NOTE: There are two five lug patterns in the hub (5 x 4.50 and 5 x 4.75).
Make sure of the correct hole pattern for the correct wheel application before installing studs into hub.
•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).
•Install the grease seal (10) by pressing into the backside of the hub (8).
•Orient the rotor (12) and the rotor adapter (11) as shown in Figure 1. 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.
•Mount the adapter/rotor assembly (11/12) to the hub (8) using bolts (14), as shown in Figure 1. Using an alternating sequence, apply
red Loctite® 271 to the threads, and torque to 55 ft-lb.
90°
.
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
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