The Yokomo S4-504GHA center gear differential housing is designed specifically for the YZ-4S to maintain accurate gear alignment and reliable power flow. Its precise construction helps keep driveline behaviour consistent across demanding sessions.
The S4-504GHA is built to last, using proven manufacturing standards to deliver durability and a good service life. Compatibility extends to MOR-010, B-YZ4SF, B-YZ4SF2-1, and MOR-020, allowing straightforward swaps on several Yokomo models.
Fitting the Yokomo S4-504GHA can lower friction and refine gear engagement for cleaner throttle response and improved handling. It is a useful upgrade for those wanting a steadier differential under load.
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