Wilwood GP320 Sprint Right Rear Brake Kit - Manual (Page 3)

• 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 right rear outboard sprint
car applications.
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 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.
•Mount the rotor adapter (2) with the notched t-nut slots facing away from the rotor (1) using bolts (3), washers (4), and t-nuts (5) 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 120 in-lb. 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.
•Slide the rotor/adapter assembly onto the axle and secure using customer supplied hardware.
• Install the caliper (6) onto the bird cage using customer’s hardware. The caliper bleed screw should be pointing up. Snug the bolts and
check that the rotor (1) is centered in the caliper (6). Add shims between the caliper mount lugs and the bird cage to center the caliper
on the rotor. After caliper alignment is set, remove caliper mount bolts one at a time, apply red Loctite
® 271 to the bolt threads, and
torque to specification.
• Remove the pad pin retainer (7) from the caliper (6). Slide the brake pads (8) into place. They should install easily without interference.
Reinstall the pad pin retainer.
•NOTE: Rubber brake hoses generally cannot be adapted to Wilwood calipers. The caliper inlet fitting is a 1/8-27 NPT. The preferred
method is to use steel adapter fittings at the caliper, either straight, 45 or 90 degree and enough steel braided line to allow for full
suspension travel. Carefully route lines to prevent contact with moving suspension, brake or wheel components. It is the
installer's responsibility to properly route and ensure adequate clearance and retention for brake hose components.
•It is also the installer's responsibility to ensure that all fittings and hoses are the correct size and length, to ensure proper sealing and
that they will not be subject to crimping, strain and abrasion from vibration or interference with suspension components, brake rotor, or
wheel.
General Information, Disassembly, and Assembly Instructions
Page 3
Parts List
1
2
3
4
5
6
7
8 160-10717
300-10743
230-10795
240-11240
300-8429
120-8524
180-4948
150-10396 Rotor, 0.16” Thick x 10.50” Diameter, 9 x 7.00: Bolt Circle, Uncoated
Adapter, Rotor
Bolt, 1/4-28 x .625 Long, Hex Head
Washer, .265 I.D. x .500 O.D. x .063 Thick
T-Nut, 1/4-28, .03 Offset
Caliper, GP 320
Pad, Pin Retainer
Pad, Composite Metallic Compound, Axle Set
ITEM NO. PART NO. DESCRIPTION
NOTES: P/N 230-10800 T-Nut Bolt Kit, includes part numbers 230-10795, 240-11240, and 300-8429
1
1
9
9
9
1
1
1
QTY