Wilwood Dynapro Single Front Drag Brake Kit - Manual (Page 4)

•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 pages): 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.
•To accommodate several model years, multiple holes have been drilled in the caliper mounting bracket (1). Rotate the bracket until the
two correct holes that align with the mounting holes in the face of the spindle are located. Apply red Loctite® 271 to bolt threads (2)
before assembly of the caliper mounting bracket (1). Mount bracket (1) to dust face plate of spindle using bolts (2). Torque bolts (2) to
22 ft-lb. NOTE: Be sure the heads of the caliper bracket (1) insert nuts are facing outward toward the wheel.
•Install wheel studs (3) into the hub (4). 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 (5) with high temperature disc brake bearing grease
(available from your local auto parts store) and install into the backside of the hub (4).
•Install the grease seal (6) by pressing into the backside of the hub (4).
•Mount rotor (7) to hub (4) using bolts (8), as shown in Figure 1. Using an alternating sequence,
apply red Loctite® 271 to the threads and torque to 55 ft-lb. NOTE: The counterbored side of
the steel rotor (7) should face away from the hub (4).
•Pack the small outer bearing cone (9) with high temperature disc brake bearing grease and
install into front of hub (4). Slide the hub/rotor assembly (4 and 7) with outer bearing cone (9)
onto the spindle. Secure using stock washer, adjusting nut and nut locking device. Adjust
bearings per Original Equipment Manufacturer (OEM) specifications.
•Install the dust cap (10) onto the hub (4). Friction created by the o-ring (11) on the dust cap (10) keeps it from unscrewing. The O.D.
of the existing spindle washer may be larger than the I.D. of the dust cap (11) not allowing it to seat against the hub face. Some grinding
on the washer O.D. may be necessary to clear the I.D. of the dust cap (10).
•NOTE: Please reference the caution statement at the beginning of the assembly instructions. With the bleed screws pointing up, mount
the caliper (12) onto the caliper bracket (1) using washers (13) and bolts (14). Finger tighten. View the rotor (7) through the top opening
of the caliper (12). The rotor (7) should be aligned in the center of the caliper (12). If not, adjust the caliper (12) by using 0.032 inch
thick shims (15) placed between the caliper mounting bracket (1) and the caliper (12). Use as many shims as necessary to obtain the
correct alignment. Finger tighten. 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 (15) between washer and caliper mounting ear to achieve the proper mounting fastener
General Information (Continued), Dissassembly and Assembly Instructions
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
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