Traxxas Halves Front & Rear with Screws RC Gearbox - 3991

The Traxxas TRX3991 gearbox halves kit supplies genuine OEM front and rear gearbox shells along with the hardware needed to rebuild or restore a Traxxas gearbox. Designed as a direct factory replacement, this part is sourced from Traxxas and is intended for hobbyists carrying out a gearbox service, repair after damage, or a full drivetrain rebuild on compatible Traxxas models. Because the Parts By Model field is not specified in the product data, buyers should cross-reference the TRX3991 part number against the Traxxas parts finder or their model's manual to confirm fitment before ordering.

Key Features

• Includes both front and rear gearbox halves, covering both ends of the drivetrain in a single purchase
• Comes with five 3x12mm rust-resistant screws to secure the gearbox housings without needing to source hardware separately
• Includes a 40mm guide pin, which is used to align internal gearbox components during reassembly
• Genuine Traxxas OEM part identified by style code TRX3991, ensuring factory-specification fit and material quality
• Suitable for gearbox repair following impact damage or wear, restoring drivetrain integrity to original spec

Compatible With

• Confirm fitment via the Traxxas parts finder using part number TRX3991 and your specific model number
• Compatibility is not confirmed from available product data — check your model's exploded parts diagram before purchasing

What's Included

• Front gearbox half
• Rear gearbox half
• 3x12mm rust-resistant screws x5
• 40mm guide pin