SUMMIT • 23
Shock disassembly
The shocks must be removed from the vehicle and disassembled to
change the pistons. Use the shock exploded views included with the
model to aid in the assembly process.
1. Remove the spring and lower spring retainer from the shock.
2. Remove the shock cap (A) and empty the shock body of shock oil.
3. Remove the lower cap (B) and the X-ring from the shock body.
4. Use side cutters to grip the shock shaft just above the rod end (C).
Remove the rod end from the shock shaft using the suspension
multi-tool (C).
5. Remove the shock shaft with piston from the shock body
out through the top of the shock body.
Shock assembly
1. Replace the stock piston with desired optional
piston. Be careful not to lose the small washer
located below the piston.
2. Position the new piston onto the shock shaft
above the small washer. Grip the threads
of the shaft with side cutters or needlenose
pliers and tighten the nut with the 4-way
wrench to secure the assembly.
3. Insert the shock shaft assembly through the shock body until the
piston bottoms out.
4. Lubricate the shaft and X-ring with silicone oil.
5 Install the X-ring over the shaft and into the bore of the shock body.
6. Install the lower cap using the suspension multi-tool (B).
7. Slide the bump stop onto the shaft.
8. Grip the shaft close to the threads with needlenose pliers or side
cutters and thread the rod end onto the shock shaft until the rod
end bottoms out (C).
9. Fill the shock with new silicone shock oil up to the top of the
shock body. Slowly move the piston up and down (always keeping
it submerged in oil) to release the air bubbles. Let the shock sit for a
few minutes to allow any remaining air bubbles to surface.
10. Slowly thread the upper cap with the installed shock bladder onto
the shock body with the suspension multi-tool (A). The excess oil
will bleed out of the small hole in the shock cap. Tighten the shock
cap until snug. Use the included steel shock wrench to hold onto
the shock body while tightening.
11. Reinstall the spring and lower retainer.
ALIGNMENT SETTINGS
The alignment settings are critical for
optimizing the performance of Summit.
Adjust your alignment as carefully and
precisely as you possibly can.
Toe Adjustment
The wheels can be adjusted to point
straight ahead or have a toe-in or toe-
out setting. To help you remember,
look down at your feet. For toe-in, your
feet point towards each other. For
toe-out, your feet point away from
each other. The toe angle of the
front wheels can be adjusted by
varying the length of the toe links
that connect the steering linkage to
the front axle carriers. The toe angle
of the rear wheels can be adjusted
by varying the length of the metal
toe links that connect the rear
bulkheads to the rear axle carriers.
The front toe links and rear toe
links are equipped with turnbuckles. The lengths of the toe links can be
adjusted by turning them with the included 5mm Traxxas wrench.
Toe Base Factory Settings
Front:
0-degrees
Rear:
1-degree toe-in each side
Static Camber Adjustment
The wheels can be set to have either
positive or negative camber (see illustration
below). The camber angle changes as the
wheel moves up and down through its
range of travel. Static camber is the camber
angle at the wheel when the vehicle is set
at its normal, stationary ride height.
The suspension pivot balls located in the axle carriers adjust the static
camber. The pivot balls are protected by blue dust plugs. To adjust your
static camber, insert the supplied 2.5 mm hex wrench through the slit
in the dust plug and engage the end of the pivot ball (compressing the
suspension until the arms are parallel to the ground will allow for easier
TUNING ADJUSTMENTS
Left-Hand
Threads
Right-Hand
(Normal)
Threads
Decrease
Length
Increase
Length
Piston Installation/Removal
2
2
2
1
1
1
3
3
3
Shock Piston Hole Sizes
Piston 1: 1.10 mm
Piston 2: 1.00 mm
Piston 3: 0.95 mm
Never slide the threads on
the shock rod past the X-ring
seal when it is installed and
compressed by the bottom
cap of the shock. Doing so will
damage the seal and cause
shock oil to leak.
