Parts list – Wilwood Dynapro Radial Sprint Inboard Brake Kit User Manual
Page 3
Parts List
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
ITEM NO.
NOTES:
P/N 230-10483 Bolt Kit, Rotor, includes part numbers 230-6739, 240-10191, and 300-12739
P/N 270-12633 Hub Kit, includes part numbers 230-10483, 270-12578 and 300-12582
P/N 250-9271 Bracket Kit, includes part numbers 250-9270, 230-9078, 230-9183, 240-1159, and 240-10190
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• 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 your axle. This kit is designed for direct bolt-on installation to standard inboard sprint car sidebell
with 3.50” mount centers and 3.00” x 46 spline axle.
Disassembly (if applicable)
• Disassemble the existing rear brakes. Raise the rear wheels off the ground and support the rear suspension per applicable racing
guidelines.
• Clean, de-grease the stock axle and/or bell while removing any nicks or burrs.
Assembly Instructions (numbers in parenthesis refer to the parts list/diagram on the preceding pages): CAUTION: All mounting bolts
must fully engage threaded holes.
•Orient the bracket as shown in Figure 1 and install using customer supplied bolts and washers. Temporarily tighten the mounting bolts.
NOTE: The bracket must fit squarely against the mount bosses on the bell.
Inspect for interference from casting irregularities,
machining ridges, burrs, etc. Remove the bracket mounting bolts one at a time, apply red Loctite
®
271 to the threads, and torque to
specification.
•With the T-notches of the rotor adapter (2) facing away from the rotor (3), attach adapter to rotor using bolts (4), washers (5), and t-nuts
(6) as shown in Figure 1. Apply red Loctite
®
271 to the bolt threads before installing. Finger tighten. After all t-nuts have been installed,
torque bolts in an alternating sequence to 220 in-lbs. Please refer to Wilwood’s data sheet DS-669 (available at
www.wilwood.com/Pdf/DataSheets/ds669.pdf
) for complete t-nut bolt kit installation instructions.
•NOTE: When cross-drilled bolts are supplied with the rotor bolt kits, the additional step of safety wiring bolts is recommended. Safety
wire bolts using standard 0.032 inch diameter stainless steel safety wire as shown in Figure 2. Refer to Wilwood’s data sheet DS-
386 (available at
www.wilwood.com/Pdf/DataSheets/ds386.pdf
) for complete safety wire installation instructions.
•Orient the axle clamp assembly (7, 8 and 9, pre-assembled) as shown in Figure 1 and install onto the rotor adapter (2) using nuts (10).
Tighten nuts part way while still allowing clamp-to-adapter movement. The nuts will be torqued later, after aligning the rotor. NOTE:
The axle clamp should be positioned inside of the rotor as shown, not offset, or outside of the rotor adapter.
•Slide the rotor/adapter assembly onto the axle and into approximate position near the caliper bracket.
General Information, Disassembly, and Assembly Instructions
250-9270
300-12582
160-9772
230-6739
240-10191
300-12739
270-12578
230-9621
230-5525
230-9618
120-8543-SI
230-9183
240-10190
230-9078
240-1159
15A-11932
PART NO.
DESCRIPTION
1
1
1
8
8
8
1
8
2
8
1
2
2
2
12
2
QTY