Wilwood GP320 Sprint Left Front 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 spindle. This kit is designed for direct bolt-on installation to standard left front outboard sprint
car applications.
Disassembly (if applicable)
• Disassemble the existing front brakes. Raise the front wheels off the ground and support the front suspension per applicable racing
guidelines.
• Clean, de-grease the stock spindle 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.
•The caliper mounting bracket assembly (1) should be installed first with clean, dry threads on the mounting bolts. Install the bracket on
the outboard side of the spindle by sliding customer furnished bolt and washer through the mounting holes and into the backside of the
spindle (see Figure 1). The bracket must tighten squarely against the side of the spindle body. Inspect for interference from casting
irregularities, machining ridges, burrs, etc.
•Mount the rotor adapter (3) with the notched t-nut slots facing inboard to the rotor (2) using bolts (4), and washer (5) slid through rotor
holes from the outboard side and into the t-nut (6). Apply red Loctite ® 271 to the bolt threads and torque bolts (4) to 120 in-lb.
•Slide the rotor/adapter assembly onto the hub assembly and secure using customer supplied hardware by sliding the bolt thru the ears
on the hub assembly from the outboard side and screw into the adapter (3).
•Install the caliper (7) on the outboard side of the bracket (1) by sliding bolt (8) thru washer (9) and into the caliper mounting bracket (1).
Initially place one shim each (9 and 10) between the caliper (7) and caliper bracket (1). The caliper bleed screws should be horizontal
to the bracket (1). Snug the bolts (8) and check that the rotor (2) is centered in the caliper (7). Add or subtract .035" shims (9) and/or
.016” shims (10) as necessary between the caliper mounting bracket (1) and the spindle to center the caliper (7) on the rotor (2).
•Remove the pad pin retainer (11) from the caliper (7). Slide the brake pads (12) into place. They should install easily without
interference. Reinstall the pad pin retainer (11).
General Information, Disassembly, and Assembly Instructions
Parts List
1
2
3
4
5
6
7
8
9
10
11
12
1
1
1
9
9
9
1
2
6
4
1
2 250-10719
160-10717
300-10720
230-10795
240-11240
300-8429
120-8524
230-10794
240-1159
240-10306
180-4948
150-10396 Bracket, Caliper Mounting
Rotor, 0.16” Thick x 10.50” Diameter, 9 x 7.00 Bolt Circle, Uncoated
Adapter, Rotor
Bolt, 1/4-28 x .625 Long, HXHD
Washer, .265 I.D. x .500 O.D. x .063 Thick
T-Nut, 1/4-28, .03 Offset
Caliper, GP 320
Bolt, 3/8-16 x 2.25 Long, HXHD
Washer, .375 I.D. x .875 O.D. x .035 Thick
Washer, .391 I.D. x .875 O.D. x .016 Thick
Pad, Pin Retainer
Pad, Composite Metallic Compound
ITEM NO. PART NO. DESCRIPTION QTY
NOTES:
P/N 230-10800 T-Nut Bolt Kit, includes part numbers 230-10795, 240-11240, and 300-8429
P/N 250-10801 Caliper Bracket Kit, includes P/N’s 230-10794, 240-1159, 240-10306 and 250-10719
Page 3