1:14 Reduction Gear Unit 4:1, truck accessory

A 4:1 intermediate gearbox brings a different character to a 1:14 truck drivetrain by shifting the balance toward higher torque. This Reduction Gear Unit is built for model truck projects where stronger pulling power matters more than outright output speed, and the compact layout suits detailed chassis installations. The housing is described as light, while the internal drive uses ball-raced metal pinion gears. That combination focuses on controlled power transfer through the gearbox itself rather than on cosmetic add-ons. The unit is specified for all Tamiya trucks except Globe Liner 56304, which gives experienced builders a clear compatibility frame for workshop planning. As an accessory part rather than a complete running set, it is intended to work within an existing truck build and changes the drive behaviour through its stated reduction ratio. A corresponding universal shaft kit is required separately for use, so the gearbox belongs in planned conversion work or a fresh 1:14 truck setup with matching drivetrain parts. Age marking: 14 Years.