Wilwood Superlite 4R Big Brake Front Brake Kit (Race) - Manual (Page 3)

General Information and Disassembly Instructions
Parts List
•Installation of this kit should ONLY be performed by individuals experienced
in the installation and proper operation of disc brake systems. Prior to any
attempt to install this kit, please check the following to ensure a trouble free
installation.
•Inspect the contents of this kit against the parts list to ensure that all
components and hardware are included.
•Verify the year and model of your spindle. This kit is designed for direct bolt-
on installation to 1998 through 2002 model year production spindles that were
originally equipped with twin piston calipers. This kit will not fit 1993 through
1997 production year spindles originally equipped with single piston floating
mount calipers. The correct spindles are identified by casting numbers
18023021 and 18023022. 1993 through 1997 model year vehicles may be
updated with the later model spindle to accommodate installation of this kit.
•Verify your wheel clearance using figure 2.
•Verify that the factory hub and stud pattern matches the stud hole pattern in
the hats supplied with this kit. Hubs that have been modified with different size
studs or lug patterns may require modifications to the hat that must be
performed by a qualified machinist.
•WARNING: Brake pads included in this kit are intended for high temperature
race use only. Extended use at low temperature can cause accelerated rotor
and pad wear. Please see the associated components list on the last page of
this data sheet for alternative brake pad compounds for other uses.
Disassembly
•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
INSIDE WHEEL
PROFILE (MIN
REQ’D FOR
CLEARANCE)
FACE OF HUB
WHEEL STUDS
3.93
(99,9)
1.15
(29,2)
6.94
(176,3)
.50 (12,7) RADIUS
.13 (3,3)
WILWOOD
ROTOR
1.25 (31,8) ROTOR
THICKNESS
CENTER
LINE OF
WHEEL
.30 (7,6) HAT THICKNESS
1.17 (29,6)
FACE OF WILWOOD HAT
WHEEL MOUNTING
SURFACE OFFSET
CALIPER
Figure 2. Wheel Clearance Diagram
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
2
4
4
12
4
2
2
16
16
2
4
4
4
16
1
1
250-10689
230-10646
240-0476
240-6320
240-5878
160-11839/40
170-8493
240-10191
230-8473
120-10693/94-RS
230-9183
240-10190
230-9078
240-1159
15H-8114K
220-6746 Bracket, Caliper Mounting
Bolt, M12-1.75 x 40mm Long, HXHD
Washer, .477 I.D. x .922 O.D. x .063 Thick
Washer, .483 I.D. x 1.031 O.D. x .033 Thick
Washer, .503 I.D. x 1.051 O.D. x .015 Thick
Rotor, 1.25” Thick x 12.19” Dia, 8 x 7.00” Bolt Circle
Hat, 5 x 4.75, .875 Offset, 8 x 7.00” Bolt Circle
Washer, ,328 I.D. x .562 O.D. x .063 Thick
Bolt, 5/16 x18 x 1.00 Long, HXHD
Caliper, Billet Superlite 4R
Nut, 3/8-24 Self-Locking, 12 Point
Washer, .391 I.D. x .625 O.D. x .063 Thick
Stud, 3/8-16 x 3/8-24 x 2.50 long (pre installed in bracket)
Shim, .035 Thick
Pad, PolyMatrix H Compound, Axle Set
Braided Stainless Steel Hose Kit (not shown)
ITEM NO. PART NO. DESCRIPTION QTY
NOTES: Part Number 230-8390 Rotor Bolt Kit, includes part numbers 230-8473 and 240-10191
Part Number 230-10647 Caliper Bracket Mounting Bolt Kit, includes P/N 230-10646, 240-0476, 240-5878 and 240-6320
Part Number 250-10699 Spindle / Bracket Bolt Kit, includes part numbers 230-9078, 230-9183, 240-1159, 240-10190 & 250-10689
Page 3