Upgrade for YZ-4S: Center Drive Shaft S4-010C71A by Yokomo  [S4-010C71A]

Yokomo S4-010C71A Center Drive Shaft (71mm bone) for YZ-4S
Price:
AUD$23.90
Brand:
Yokomo
Model:
S4-010C71A
GTIN:
0639342187829
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Spares / Hop-ups - Yokomo - YZ-4 category
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Drive shaft details for YZ-4S

Sold under part number S4-010C71A, this center drive shaft features a 71mm dogbone length intended for YZ-4S platforms running slipper clutches. It acts as the central driveline connection, transmitting power between the differential and the drive cups.

The component is supplied as an exact-fit replacement for the listed compatible models, useful for replacing worn dogbones or when servicing slipper clutch setups. Fitment requires attention to alignment and secure retention at the differential outputs and drive cups.

During installation, verify full seating and minimal axial play at both ends; the shaft contributes to driveline lash characteristics and affects how the slipper clutch responds on spool-up.

Specifications

  • Item: Center Drive Shaft (71mm bone)
  • Model Number: S4-010C71A
  • Compatibility: YZ-4S, B-YZ4SF

Compatible Models

  • YZ-4S
  • B-YZ4SF

This 71mm dogbone is intended as a direct replacement on YZ-4S chassis for maintenance and tuning where slipper clutches are fitted, restoring a standard driveline connection without changing the chassis layout.
Remark :
Due to limited stock availability, please notice that some Yokomo items may have to order from the factory and the ready time is around 4-6 weeks. Customer purchases the item is assumed to accept the waiting time which allows us to order directly from the manufacturer if the item is out of our warehouse.

How does the dogbone length affect slipper tuning?

Dogbone length influences the relative preload and lash in the driveline. Using the specified 71mm length helps maintain the intended slipper engagement characteristics for the chassis.

Will changing this part alter gear mesh?

No. As a direct replacement, the 71mm shaft preserves existing gear mesh settings. Any change in mesh is typically due to differential or gearbox adjustments rather than the dogbone itself.

Can this part reduce driveline lash?

Correctly fitted, the shaft will help maintain intended driveline lash. If lash is excessive after fitting, check for worn cups or incorrect seating before replacing other components.

Any recommendations for initial break-in?

Perform a brief, low-speed run after installation and recheck seating and fasteners. Inspect for any new play or noise before normal operations.

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