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Traxxas Output Gear, 33 T W/ Spacers ( (Traxxas 3984X | TRA3984X)

Model: Traxxas 3984X
Dist. #: TRA3984X   SKU: TRA3984X

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Store Pickup:

South Jordan, UT
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Price:  $3.99

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Updated on Sep 25, 2025 10:30:12 PM

Output Gear 33T E-Maxx...
This is the Output Gear 33T for the Traxxas E-Maxx Truck.

FEATURES:
Black nylon construction

CONSISTS OF:
One 33T output gear
Two spacers

NEEDS:
Silicone Grease, use TRAC6037

SPECIFICATIONS:
Outer diameter: 1.37" (35mm)
Density: 1.02" (26mm)

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Output Shaft, Transmission

This is the Transmission Output Shaft for the Traxxas E-Maxx.

FEATURES:
Metal construction, black in color

CONSISTS OF:
One transmission output shaft, Part #5369

NEEDS:
Installation on the Traxxas E-Maxx

SPECIFICATIONS:
Overall length: 2.75" (70mm)
Size of drive dog install: .39" (10mm)
Size of shaft: .23" (6mm)

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Gearbox Halves, Shift Detent B

These are the replacement Gearbox Halves for the Traxxas E-Maxx Truck.

FEATURES:
Black plastic construction

CONSISTS OF:
Gearbox halves (front and rear) and screws

NEEDS:
Remainder of the gearbox contents

SPECIFICATIONS:
Length: 2.67 (68mm) (at widest point)
Width: 3.42" (87mm) (at widest point)

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Input Shaft/ Drive Gear Assemb

This is the replacement Input Shaft/Drive Gear Assembly for the
Traxxas 3905 E-Maxx Truck.

FEATURES:
Steel shaft, black in color
Steel drive gear assembly, silver in color

CONSISTS OF:
One Input Shaft with 18 Tooth Top Gear

NEEDS:
Installation following the design handbook

SPECIFICATIONS:
Shaft Size: 5mm
Shaft Length: 3.53" (90mm)
Thread Size: 4mm

This thing compliments the above gone over thing.

Idler Gear, 20-Tooth/ Idler Ge

This is the replacement 20 Tooth Idler Gear and Shaft for the
Traxxas E-Maxx 4WD RTR.

FEATURES:
Steel construction, weapon metal in color
Replaces a worn or broken idler gear and shaft

CONSISTS OF:
One 20 Tooth Idler Gear
One 5x18mm Idler Gear Shaft

NEEDS:
Installation following the design handbook

SPECIFICATIONS:
Externally Size: .86" (22mm)
Inside Size: .43" (11mm)
Density: .50" (12.5mm)

Many others have actually purchased this thing in addition to the thing that you are presently reading about.

Motor Plate For Single Motor

This is the optional Single Motor Plate for the
Traxxas E-Maxx 16.8V RTR.

FEATURES:
Aluminum construction, blue in color
Created for a clean set up of a single brushless motor system in
the E-Maxx 16.8V RTR (requires gear cover number TRAC3997)

CONSISTS OF:
One Aluminum Motor Plate

NEEDS:
Installation and motor cover number TRAC3997

Many others have actually purchased this thing in addition to the thing that you are presently reading about.

5 X 11 X 4Mm Ball Bearing (2) Blue Rubber Shield R Evo

This is a 2 pack of 5X11mm Ball Bearings for the Traxxas Revo.

FEATURES:
Metal bearing construction
Blue rubber dirt guards

CONSISTS OF:
(2) 5X11mm ball bearings, Part #5116

SPECIFICATIONS:
Inside diameter: 3/16" (5mm)
Externally diameter: 7/16" (11mm)
Width: 5/32" (4mm)

Regularly purchased with the thing that you are presently reading about.

6 X 12 X 4Mm Ball Bearing (2) Blue Rubber Sheild R Evo

This is a 6X12mm Ball Bearing Set from Traxxas.

FEATURES:
Steel construction
Blue rubber dirt guards

CONSISTS OF:
(2) ball bearings, Part #5117

SPECIFICATIONS:
Inside diameter: 6mm
Externally diameter: 12mm
Width: 4mm

COMMENTS:
This bearing set is utilized in the transmission and differentials of
    the Revo.
X-Plosion Parts Finder Part also Fits on the vehicles below:

Frequently Bought Together

Traxxas Output Gear, 33 T W/ Spacers (
+
Traxxas Idler Gear, 20-Tooth/ Idler Ge
+
Traxxas Gearbox Halves, Shift Detent B
This Item: Traxxas Output Gear, 33 T W/ Spacers (
$3.99
Traxxas Idler Gear, 20-Tooth/ Idler Ge
$5.99
Traxxas Gearbox Halves, Shift Detent B
$10.49

Total Price: $20.47

Add All Three To Cart

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