Gearbox Halves (Front & Rear): 3991X
$10.00
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Gearbox Halves (Front & Rear): 3991X
$10.00
Complete Gear Housing
Front and Rear Halves Included
Hardware Included
Detent Ball Screws and Seals
Factory OEM Fit
Direct Replacement Drivetrain Component
In Stock
Precision Transmission ProtectionEssential Gearbox Case and Hardware
Ensure optimal drivetrain performance with these replacement Gearbox Halves with Hardware designed for high-stress RC transmission applications. Built to protect internal gears from dirt and debris, this housing set provides exact factory fitment for smooth gear operation.
Rugged Transmission HousingComplete Repair and Rebuild Solution
Maintain your RC car transmission reliability with these replacement Gearbox Halves with Hardware. Crafted from high-impact composite materials, this complete housing set includes front and rear halves along with essential assembly components including a shift detent ball, spring, shaft seal, grub screw, and 2.5x8mm screws. Perfect for servicing worn drivetrain components or rebuilding your transmission, this OEM part restores smooth power transfer and keeps your RC vehicle running at peak efficiency.
Part SpecificationsTechnical Details and Contents
Compatible Vehicles
Consult Model Manual
Part Type
Gearbox Housing
Material
Molded Composite & Steel
Placement/Position
Transmission Assembly
Included Hardware
Detent Ball, Spring, Screws, Seal
Component FeaturesEngineered for Smooth Shift Operation
Precision MoldedFront and Rear Gearbox Halves
Shift MechanismIncludes Shift Detent Ball and Spring
Seal ProtectionIntegrated Shaft Seal Prevents Contamination
Fasteners IncludedGrub Screw and 2.5x8mm Screws (2) (tool)
Factory FitDirect OEM Replacement Drivetrain Part
Frequently Asked QuestionsEverything you need to know
What components are included with the Gearbox Halves with Hardware?
The set includes front and rear gearbox halves, a shift detent ball, detent spring, shaft seal, grub screw, and two 2.5x8mm assembly screws.
When should I replace my RC car Gearbox Halves with Hardware?
You should replace the gearbox halves if the housing is cracked, stripped, or allowing dirt to enter, which can cause excessive gear wear and drivetrain drag.
Is installation difficult for the Gearbox Halves with Hardware?
Installation is straightforward for hobbyists; simply disassemble the transmission housing, transfer internal gears and bearings, and secure the new halves using the provided hardware.