Wilwood Dynapro SA Lug Drive Dynamic Rear Drag Brake Kit - Manual (Page 3)

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 match the axle housing flange, not necessarily the rear
end make. Many times aftermarket manufacturers put a different make of 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.
•Verify wheel clearance using Figure 2.
•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 (see Figure 6).
• Housing flange mounting pattern to pattern in new bracket (see Figure 6).
• Stud pattern on axle flange to hole pattern in new hat.
• Offset dimension from wheel side of axle flange to wheel side of 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 on the cover page.
• Verify that the wheel axle stud size is 0.50” diameter. The Wilwood hats in this kit
are drilled for 0.50” diameter wheel studs.
• Maximum axle flange diameter must be no larger than 6.29” with a .050” x 45° chamfer (see
Figure 3).
Disassembly Instructions:
•Disassemble the original equipment rear brakes:
Raise the rear wheels off the ground and support the rear suspension according to the vehicle
manufacturer’s instructions.
Remove the rear wheels and completely disassemble the stock brake system down to the bare
axle housing. Save the Original Equipment Manufacturer (OEM) housing flange bolts and
nuts.
General Information and Disassembly Instructions
Parts List
1
2
3
4
5
6
7
8
9
10
11
2
2
2
16
2
2
4
4
16
1
2
249-0250-L/R
170-12430
160-12483
300-11931
310-11775
120-9695
240-10190
230-0228
240-1159
150-10020K
300-9634 Bracket, Caliper Mounting
Hat, Rotor Mounting, 1.41 Offset
Rotor, .35” Thk x 11.44” Dia, 8 x 7.00” Bolt Circle
Dynamic Mount Wear Plate
Snap Ring
Caliper, DynaPro Lug Mount
Washer, .391 I.D. x .625 O.D. x .063 Thick.
Bolt, 3/8-24 x 1.25 Long, Hex Head
Shim, .035 Thick
Pads, CM Compound, Axle Set
Retainer, Pad Clip
ITEM NO. PART NO. DESCRIPTION QTY
NOTES: Part Number 300-12561 Dynamic Mount Snap Ring Kit, includes part numbers 300-11931 and 310-11775
Part Number 230-0204 Caliper Mounting Bolt Kit, includes part numbers 230-0228, 240-10190 and 240-1159
Page 3
CENTER
LINE OF
WHEEL
.50 (12,7) RADIUS
.14 (3,6)
3.66
(93,0)
6.69
(169,9)
CALIPER
WILWOOD ROTOR
WHEEL MOUNT SURFACE
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
Figure 2. Wheel Clearance Diagram
Figure 3. Axle Flange
Maximum Dimension
MAXIMUM
DIA 6.290"
TO FIT
WILWOOD
HAT
3.06”
REGISTER
.050 X 45°
CHAMFER