B-MAX4 III Rear Gear Box Replacement with Stabilizer Holder - Yokomo YOKB4-302R  [YOKB4-302R]

Overview of B-MAX4 III rear gearbox

This rear gear box assembly is made for the Yokomo B-MAX4 III chassis and is supplied with an integrated stabilizer holder as noted in the product title. The part functions as a replacement or service unit for the rear drivetrain while maintaining the factory rear-end layout of the B-MAX4 III.

Installation and fitment: the assembly installs into the chassis rear where the original gear box is located and mates with the existing drivetrain components on a standard B-MAX4 III. Follow your usual rear-end teardown steps, check gear mesh and shaft alignment during reassembly, and ensure the stabilizer mounting points align with your chassis setup.

Tuning role: the built-in stabilizer holder provides a dedicated mount for a rear stabilizer bar, allowing changes to roll stiffness and balance without altering the main differential or spur/pinion arrangement. Use this unit when replacing a worn gearbox or when restoring proper stabilizer geometry after setup changes.