Wilwood W6A Big Brake Truck Front Brake Kit - Manual (Page 3)

Parts List
General Information and Disassembly Instructions
•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.
•Make sure this is the correct kit to fit the exact make and model year of your axle. This
kit is designed for direct bolt-on installation to 1999 through present model year GM
Truck / SUV 1500 Series hubs.
•Verify your wheel clearance using Figure 2.
•Verify that the factory axle and stud pattern matches the stud hole pattern in the rotors
supplied with this kit. Axles that have been modified with different size studs or lug
patterns may require modifications to the rotor that must be performed by a qualified
machinist.
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.
•Remove the wheel. Remove the two bolts that hold the stock caliper mounting bracket
to the spindle. Lift off the bracket and stock caliper as one unit, then slide off the stock
hat and rotor assembly. On some models you may have to unbolt the stock caliper
from the caliper bracket before removal
•Thoroughly clean and de-grease the spindles while removing any nicks or burrs.
CENTER
LINE OF
WHEEL
.50 (12,7)
RADIUS 1.25 (31,8)
3.80 (96,5) .20 (5,1)
4.72
(119,9)
8.15
(207,0)
CALIPER
WILWOOD ROTOR
WHEEL MOUNT SURFACE
NOTE: A MINIMUM OF .080” CLEARANCE MUST BE MAINTAINED
BETWEEN THE WHEEL AND CALIPER IN ALL AREAS
1.25 (31,8) ROTOR THICKNESS
3.09 (78,5)
CENTER REGISTRATION
Figure 2. Wheel Clearance Diagram
1
2
3
3A
4
5
6
7
7A
8
9
10
11
12
2
16
2
2
2
24
24
2
2
4
4
4
16
1
250-9888
240-8969
160-9787/88
160-9762/63
170-9891
240-11240
230-6738
120-11661/62-RS
120-11661/62-RSR
230-9182
240-11101
230-9080
240-3902
150-9488K Bracket, Caliper Mounting
Shim, .029 Thick
Rotor, SV-GT 1.25” X 14.25” Dia, 12 x 9.19” Bolt Circle (one each, right and left)
Rotor, SRP Drilled and Slotted (one each, right and left)
Hat, 6 x 5.50, .813 Offset, 12 x 9.19 Bolt Circle
Washer, .265 I.D. x.500 O.D. x .063 Thick
Bolt, 1/4-28 x .75 Long, 12 Point
Caliper, W6A (one each, right and left)
Caliper, W6A, Red (one each, left and right)
Nut, 7/16-20, Self-Locking, 12 Point
Washer, .453 I.D. x .750 O.D. x .063 Thick
Stud, 7/16-14 x 7/16-20 x 3.375 long (pre installed in bracket)
Shim, .016 Thick
Pad, BP-10, Axle Set
ITEM NO. PART NO. DESCRIPTION QTY
NOTES: Part Number 230-8217 Rotor Bolt Kit, includes P/N 230-6738 and 240-11240
Part Number 250-9898 Caliper Bracket Kit, includes P/N 230-9080, 230-9182, 240-3902, 240-8969, 240-11101 & 250-9888
Item 3A is an optional item and is included with the “-”D” drilled kits. Add “-D” to end of part number when ordering.
Item 7A is an optional item and is included with the “-R” red kits. Add “-R” to end of part number when ordering.
Wilwood offers an optional Braided Stainless Steel Hose Kit. Order part number 220-8998 (1999-2006), or part number
220-10979 (2007-2011) (neither line included in kit).
Page 3
Photographic Tip
We suggest you take digital photos of the brake system setup before and during the disassembly procedure. This will aid in the event
that something is not compatible with the new brake components and be a valuable tool to assist in the trouble-shooting process.