3Racing Sakura M4 SAK-M4S37 Heavy Duty Main Shaft  [SAK-M4S37]

3Racing Sakura M Main Shaft M5 x 25 - SAK-M4S37
Price:
AUD$4.80
Brand:
3Racing
Model:
SAK-M4S37
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Stiffen the Driveline on Your Sakura M4

The 3Racing Sakura M4 Main Shaft SAK-M4S37 is a reliable upgrade aimed at improving driveline stiffness and reducing component fatigue. It provides a more direct power path which helps stability under load.

Why Fit the 3Racing Shaft?

Choosing a higher quality main shaft reduces flex and keeps gear engagement consistent during hard acceleration and corner exits. That consistency helps with predictable handling at speed.

Fitment Notes and Installation

This part is made for Sakura M4 architecture and installs into the original mount points with no special tooling. It is a straightforward replacement that supports both upgraded and stock drivetrains.

Can I run this on dirt or grass tracks?

Yes, the SAK-M4S37 is built to cope with varied surfaces, though regular cleaning is recommended after dusty or muddy use to preserve components.

Does it change gear ratios or gearing feel?

No, the shaft does not alter gear ratios. Its benefit is improved stiffness and reduced play, which can make gear engagement feel crisper.

Recommended checks after fitting?

Verify gear mesh, ensure bearings spin freely, and check for any contact with the chassis before running. Recheck after a few short sessions.

Is any break in needed?

A gentle initial period is sensible to seat the parts, but there is no special break in procedure required beyond normal running and inspections.

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