Front; Rear; Roll Center; Gear Ratio Chart - Traxxas Slayer Pro 4x4 59074 Owner's Manual

#5359 Progressive 3 Rocker Arm Set
#5133 Pushrod Spacers (these are required to lengthen the pushrods to
maintain proper suspension travel.)
The chart below demonstrate the effect of the various rocker arms
on wheel force as
20
the suspension is 18
16
compressed. On the
14
12
progressive rate,
10
8
wheel force is light
6
4
at first and increases
2
as the suspension is
0
10 20
compressed.
Bump Steer Elimination Chart
The illustrations and the following table detail the position of the outer
toe link end for various caster and roll center settings to eliminate
bump steer. The shims and the hollow balls used to adjust bump steer
are provided with your vehicle.

FRONT

Caster
Outer Toe Link End Setup 5° 7.5° 10° 12.5° 15°
Standard
Hollow Ball
Thin Shim
Thick Shim
Thin Shim
Standard
Hollow Ball
Thick Shim
Tall Center
Hollow Ball
Thick Shim
Standard
Hollow Ball
Thin Shim
Thick Shim
Thin Shim
Standard
Hollow Ball

REAR

The illustrations and the following table detail the position of the outer
toe link end for the rear suspension. Depending on the upper control
arm mounting hole in the bulkhead (roll center) and desired toe-in
effects, the following settings should be used.
Progressive
Rate Travel
To Eliminate Bump Steer:
Constant
Rate Travel
Outer Toe Link
Tall Center
30 40 50 60 70 80 90
Hollow Ball
Wheel Travel
Tall Upper
Hollow Ball

Roll Center

Control Arm
There are two holes on the
Mounting Hole on
bulkheads to mount each upper
Front Bulkhead
suspension arm. The roll center
Upper
of the vehicle can be raised by
mounting the upper control arm in
Lower the lower of the two holes. This will
effectively increase the roll stiffness
of the vehicle (similar to installing swaybars). Adding roll resistance to
Upper
one end of the vehicle will tend to add traction to the opposite end. For
example, increasing roll resistance in the rear by installing the upper
Lower
arms in the lower holes will provide more traction for the front wheels
and potentially more steering.
Upper
From the factory, the front arms are installed in the upper position
Lower
and the rear arms are installed in the lower position. This makes the
truck easier and more forgiving to drive. The other holes should be
Upper
reserved for track tuning. Note: When the front upper suspension
arms are moved to a different hole, the outer toe link ends should
Lower
be repositioned to eliminate bump steer. Refer to the Bump Steer
Elimination chart (left) and look up your suspension combination
(caster angle and roll center position) to find the correct position for
Upper
the front outer toe links. The same is required for the rear control links.
Adjustment is achieved using the shims and hollow balls provided with
the vehicle.
ADVANCED TUNING ADJUSTMENTS
For Added Toe-In During Acceleration:
Control Arm
Outer Toe Link
Mounting Hole on
End Setup End Setup
Rear Bulkhead
Tall Lower
Upper Hole
Hollow Ball
Tall Center
Lower Hole
Hollow Ball
Upper Control Arm
Lower Mounting Holes

Gear Ratio Chart

The following gear ratio chart shows the
available combinations with optional
spur gears, clutch bells, and two-speed
gear sets.
With 14T Clutch Bell
Control Arm
2nd gear sets
Mounting Hole on
17T/37T
Rear Bulkhead
(Standard)
16T/40T
(Close)
Upper Hole
18T/38T
(Wide)
With 15T Clutch Bell
(standard)
Lower Hole
2nd gear sets
17T/37T
(Standard)
16T/40T
(Close)
Upper Control Arm
Upper Mounting Holes 18T/38T
(Wide)
With 16T Clutch Bell
2nd gear sets
17T/37T
(Standard)
16T/40T
(Close)
18T/38T
(Wide)
With 17T Clutch Bell
2nd gear sets
17T/37T
(Standard)
16T/40T
(Close)
18T/38T
(Wide)
*stock configuration out of the box
SLAYER PRO 4X4 • 37
# of Spur Gear Teeth
Gear 36 38 40
1st 16.87 17.81 18.75
2nd 11.70 12.35 13.00
1st 16.87 17.81 18.75
2nd 12.75 13.46 14.17
1st 16.87 17.81 18.75
2nd 10.77 11.37 11.97
# of Spur Gear Teeth
Gear 36 38 40
1st 15.75 16.62 17.50
2nd 10.92 11.53 12.14
1st 15.75 16.62 17.50
2nd 11.90 12.56 13.22
1st 15.75 * 16.62 17.50
2nd 10.05 * 10.61 11.17
# of Spur Gear Teeth
Gear 36 38 40
1st 14.76 15.58 16.40
2nd 10.24 10.81 11.38
1st 14.76 15.58 16.40
2nd 11.16 11.78 12.40
1st 14.76 15.58 16.40
2nd 9.42 9.95 10.47
# of Spur Gear Teeth
Gear 36 38 40
1st 13.89 14.67 15.44
2nd 9.64 10.17 10.71
1st 13.89 14.67 15.44
2nd 10.50 11.09 11.67
1st 13.89 14.67 15.44
2nd 8.87 9.36 9.85