The Yokomo S4-504GHA center gear differential housing is purpose made for the YZ-4S to secure correct gear mesh and reliable power transmission. Its controlled tolerances aim to reduce unwanted drivetrain movement for steadier handling.
The S4-504GHA is manufactured to provide lasting strength and dependable operation. It fits a range of Yokomo models including MOR-010, B-YZ4SF, B-YZ4SF2-1, and MOR-020, allowing it to be used across different vehicle setups.
Switching to the Yokomo S4-504GHA can lower friction and improve gear engagement, delivering smoother throttle response and more predictable cornering. It is a practical upgrade for racers focused on reliable drivetrain behaviour.
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