Wilwood Dynapro SA Lug Drive Dynamic Rear Drag Brake Kit - Manual (Page 6)

Balancing the Brake Bias on 4 Wheel Disc Vehicles
•OE Style or Single Mount Race Pedal with Tandem Outlet Master Cylinder:
Front to rear caliper piston sizes, rotor diameters, and pad compounds must be initially configured to provide the correct range of
vehicle bias when using a single bore / tandem outlet master cylinder. If excessive rear brake bias is experienced, an inline adjustable
proportioning valve can be used to decrease the rear line pressure to help bring the vehicle into balance. If excessive front brake bias
is experienced, first consideration should be given to increasing the rear brake bias to bring the vehicle into overall balance.
•Race Pedal with Dual Master Cylinders and Balance Bar:
Master cylinders must be sized to match the calipers and allow the pedal balance bar to operate near the center of its travel. If it is not
possible to fine tune the bias within the adjustable range of the balance bar, then consideration must be given to changing a master
cylinder bore size or some other aspect of the brake system to bring the car into balance. Larger bore master cylinders will generate
less pressure while decreasing pedal travel. Smaller bores master cylinders will generate higher line pressures with an increase in
pedal travel.
Page 6
Assembly Instructions (Continued)
Figure 6. Rear Housing Flange Chart and Axle Flange / Offset Cross-Section
2.000
2.835 DIA
3/8”
BOLT
3.336
SMALL FORD
2.375
3.150 DIA
1/2”
BOLT
3.500
BIG FORD
2.000
3.150 DIA
3/8”
BOLT
3.562
BIG FORD (NEW STYLE)
3/8”
BOLT
2.000
3.562
SPEEDWAY
ENGINEERING
MODLITE
3/8”
BOLT
1.680
TUBING O.D.
2.840
3.076
3.410
8.8" FORD
8-3/4 AND 9-3/4
MOPAR / DANA 60
3/8”
BOLT
1.594
2.875 DIA
3.562
2.203
3.188
2.000
2.560
DIA
3.336
AMC
3/8”
BOLT
3/8”
BOLT
DANA 35
1.594
2.875
DIA
TUBING O.D.
2.600 - 2.875
3.562 2.203
3.188
OLDS
PONTIAC
3/8”
BOLT
2.375
3.150 DIA
2.875
3.500
CHEVY
(SPECIAL)
3/8”
BOLT
3.150
DIA
2.404
2.652
3.072
3/8”
BOLT
10 / 12 BOLT
CHEVY
2.404
2.652
3.072
TUBING O.D. 2.725
3/8”
BOLT
12 BOLT CHEVY
C-CLIP ELIMINATOR
2.404
2.652
3.072
TUBING O.D. 2.725
3/8”
BOLT
MARK
WILLIAMS
3.000
3.150 DIA
3.000
3/8”
BOLT
MUSTANG (05-UP)
3.746
TUBING O.D.
3.190
2.304
AXLE FLANGE CROSS-SECTION
AXLE OFFSET
AXLE
AXLE HOUSING
FLANGE
AXLE TUBE
AXLE
FLANGE
WHEEL
STUD
TUBING
O.D. 3.420
1955-1957 CHEVY
1956 CORVETTE
2.656
3.396
2.835 DIA (1955/56)
3.000 DIA (1957)
3/8” BOLT
3/8”
BOLT
2.404
2.652
3.072
TUBING O.D. 2.840
12 BOLT-LATE
CHEVY
TUBING
O.D. 3.420
1957-1962 CORVETTE
1959-1964 IMPALA
2.656
3.396
3.000 DIA
3/8”
BOLT
3/8”
BOLT
2.531
DIA
CHEVY
C10
2.656
3.396
TUBING O.D.
3.420
3/8”
BOLT
STRANGE
ENGINEERING
FLOATER AXLE
1.750
2.373
DIA
3.030
3/8”
BOLT
TUBING
O.D. 2.685
2.87
7-1/4” FORD
3.23
1.680