Wilwood Grand National User Manual
Page 2

Wilwood • November 2001 • 805 / 388-1188 • Fax 805 / 388-4938 • www.wilwood.com
.45 (11,4)
MOUNT HOLE
"D1"
3.07 (77,9)
MOUNT HEIGHT
10.70 (271,8)
DISC ROTATION
1.75 (47,8)
PISTON
1.38 (35,1)
PISTON
1.38 (35,1)
PISTON
"E"
OUTSIDE
RADIUS
"A"
BOLT CIRCLE
RADIUS
3.50 (88,9)
MOUNT CENTER
TOP OF FRICTION MATERIAL
AND DISC O.D. TO BE FLUSH
DISC WIDTH
2.67
(67,8)
2.67
(67,8)
DISC/WHEEL CENTERLINE
DIMENSION "D1" = (DISC DIAMETER/2) - 3.07 (77,9)
"A"
BOLT CIRCLE RADIUS
3.50 (88,9)
DISC
DIAMETER
12.19 (309,6)
"E"
OUTSIDE RADIUS
6.92 (175,8)
NOTE:
RIGHT HAND, REAR MOUNT CALIPER SHOWN
INLET FITTING: 1/8-27 NPT
"B"
MOUNT OFFSET
1.56 (39,5)
1.56 (39,5)
"B"
MOUNT OFFSET
DISC
WIDTH
1.25 (31,8)
1.38 (35,1)
GN III CALIPER, MOUNTING DIMENSIONS:
2.53 (64,3)
5.99 (152,1)
.80
(20,3)
GN III CALIPER, TYPE 7520 PAD DIMENSIONS AND ORDERING INFORMATION:
ORDERING INFORMATION: USER SERVICEABLE COMPONENTS:
INBOARD
OUTBOARD
PAD WEAR CROSSOVER COTTER PIN BLEED SCREW
BRIDGE
SQ RING
ASSEMBLY
BODY
BODY
PISTON
PLATE (EA)
TUBE (4 PK)
KIT (10 PK)
KIT (4 PK)
BOLT KIT
KIT (6 PK)
120-6478-FS
110-6476
110-3026
200-3176 (1.38”)
300-3053
190-3664
180-0053
220-0627
230-3029
130-3084
200-3062 (1.75”)
120-6478-RS
110-6476
110-3026
200-3176 (1.38”)
300-3053
190-3664
180-0053
220-0627
230-3029
130-3084
200-3062 (1.75”)
120-6479-FS
110-6477
110-3028
200-3176 (1.38”)
300-3053
190-3664
180-0053
220-0627
230-3029
130-3084
200-3062 (1.75”)
120-6479-RS
110-6477
110-3028
200-3176 (1.38”)
300-3053
190-3664
180-0053
220-0627
230-3029
130-3084
200-3062 (1.75”)
120-6951-FS
110-6476
110-3026
200-5407 (1.38”)
300-3053
190-3664
180-0053
220-0627
230-3029
130-3084
200-5399 (1.75”)
120-6951-RS
110-6476
110-3026
200-5407 (1.38”)
300-3053
190-3664
180-0053
220-0627
230-3029
130-3084
200-5399 (1.75”)
120-6952-FS
110-6477
110-3028
200-5407 (1.38”)
300-3053
190-3664
180-0053
220-0627
230-3029
130-3084
200-5399 (1.75”)
120-6952-RS
110-6477
110-3028
200-5407 (1.38”)
300-3053
190-3664
180-0053
220-0627
230-3029
130-3084
200-5399 (1.75”)
AXLE SET PART NO.
PAD TYPE/COMPOUND
15A - 5736K
7520 A PolyMatrix
15B - 3993K
7520 B PolyMatrix
15C - 4041K
7520 C PolyMatrix
15D - 4333K
7520 D PolyMatrix
15E - 6101K
7520 E PolyMatrix
15Q- 6879K
7520 Q PolyMatrix