Yokomo RS-503GH 40T Differential for RS1.0 Front and Rear  [RS-503GH]

Yokomo RS-503GH 40T Differential Pulley/Differential Case for RS1.0
Price:
AUD$12.09
Brand:
Yokomo
Model:
RS-503GH
GTIN:
11
Condition:
Brand New
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Upgrade Your RS1.0 Drivetrain with the Yokomo RS-503GH 40T

The Yokomo RS-503GH 40T Differential Pulley and Case is designed to improve drivetrain stability on RS1.0 vehicles. It is suitable for installation in either front or rear differentials and matches the RSR-010 and RSR-LFGT3RTR chassis patterns for reliable fitment.

Stable Torque Distribution

The 40T pulley profile promotes more even torque distribution and smoother transitions under load. Precision-cut teeth reduce backlash and help maintain predictable handling through cornering and throttle inputs.

Easy Replacement and Fit

The RS-503GH is a direct-fit option for compatible differential housings, making upgrades and repairs straightforward without altering existing suspension or drivetrain geometry.
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.

Can I swap this into existing RS1.0 diffs without modification?

In most cases the RS-503GH installs without chassis modifications. Verify clearance and shim settings during fitment to ensure correct tooth engagement.

Will using this pulley change differential feel?

Expect a firmer, more consistent mesh thanks to the 40T geometry. Proper setup and lubrication will determine how pronounced the change feels on track.

Any tips for long term reliability?

Use quality diff grease, inspect teeth after heavy running and replace any parts showing uneven wear. Keeping the differential clean from grit will also prolong service life.

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