Wilwood Forged Dynalite Rear Drag Brake Kit - Manual (Page 3)

Parts List
1
2
3
3A
4
5
6
7
8
9
10
1
2
2
2
2
16
2
4
4
16
1
249-0252L/R
170-0208
160-0201
160-1601
180-0054S
230-2043
120-6818
240-10190
230-0228
240-1159
150-8850K Brackets, Caliper Mounting (pair, one each, left and right)
Hat, Rotor Mounting
Rotor, .35” Thk x 11.44” Dia, 8 x 7.00” Bolt Circle
Rotor, Drilled
Cotter Pin
Bolt, 5/16-18 x 0.75 Long, Hex Head
Caliper, Forged Dynalite
Washer, .391 I.D. x .625 O.D. x .063 Thick
Bolt, 3/8-24 x 1.25 Long, Hex Head
Shim, .032 Thick
Pads, BP-10 Compound, Axle Set
ITEM NO. PART NO. DESCRIPTION QTY
NOTES: Part Number 230-0233D Rotor Bolt Kit, includes part number 230-2043
Part Number 230-0204 Mounting Bolt Kit, includes part numbers 230-0228, 240-10190 and 240-1159
Item 3A is an optional item and is included in the (D) Drilled kits
Installation of this kit should ONLY be performed by persons experienced in the
installation and proper operation of disc brake systems. Before assembling the
Wilwood rear axle disc brake kit, double check the following items to ensure a trouble-
free installation.
•Make sure this is the correct kit to fit the axle housing flange, not necessarily the rear
end make. Many times after market manufacturers put a different make of axle
housing flange on the stock rear end housing (see Figure 6). Example; Big Ford rear
ends with Olds-Pontiac flanges, therefore, an Olds-Pontiac rear disc brake kit would
be the correct kit to order.
•Inspect the package contents against the parts list to ensure that all components and
hardware are included.
•Verify The Following Measurements Before Assembly.
• Bearing outside diameter.
• Axle housing flange mounting pattern to pattern in bracket.
• Stud pattern on axle flange to stud pattern in hat.
• Dimension from wheel side of axle flange to wheel side of axle housing flange
(see Figure 6, lower right hand corner). This dimension is critical to ensure
proper alignment of the rotor to the caliper, and should match offset given in the
kit description.
• Verify that the wheel axle stud size is 0.50” diameter. The Wilwood hats utilized
in these kits are drilled for 0.50” diameter wheel studs.
• Maximum axle flange diameter must be no larger than 6.11” w/.050” x 45°
chamfer, Figure 3.
Disassembly Instructions:
•Disassemble the original equipment rear brakes:
Raise the rear wheels off the ground. Support the rear suspension by placing jack stands under the rear axle or vehicle frame. The
vehicle’s weight must be on jack stands. The vehicle must not be supported by a car jack or hoist.
Completely disassemble the stock brake system down to the bare axle. Degrease and remove any dings or burrs on the housing
flange as well as the axle flange which may interfere with the brake assembly. Assemble the axle into the rear end housing.
General Information and Disassembly Instructions
Page 3
Figure 2. Wheel Clearance Diagram
CENTER
LINE OF
WHEEL
1.25 (31,8) RADIUS
.36 (9,1)
3.68
(93,5)
6.72
(170,7)
CALIPER
WILWOOD ROTOR
NOTE: A MINIMUM OF .080” CLEARANCE MUST BE MAINTAINED
BETWEEN THE WHEEL AND CALIPER IN ALL AREAS
.35 (8,9) ROTOR THICKNESS
3.06 (77,7)
CENTER REGISTRATION