3Racing SAK-U122B_V2 FFEX 40T Racing Gear Differential  [SAK-U122B_V2]

3RACING FFEX 40T Gear Differential Plastic Replacement - SAK-U122B_V2
Price:
USD$3.80
Brand:
3Racing
Model:
SAK-U122B_V2
Condition:
Brand New
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Race-Focused 40T Differential for FFEX

The 3Racing FFEX 40T Gear Differential Plastic Replacement is intended for competitors and tuners seeking consistent drivetrain behaviour. It provides a stable baseline for setup adjustments and preserves the expected feedback during high tempo running.

Performance Notes

  • Durable Construction: Engineered from a resilient plastic formulation to withstand repeated race-day loading.
  • Optimized Performance: Delivers controllable torque transfer to support predictable corner entry and exit tuning.
  • Perfect Fit: Dimensioned to match FFEX internals for direct installation and minimal setup change.

What setup changes should I expect after fitting this diff?

Expect slightly smoother torque transitions; you may need to fine tune preload or diff oil to dial the desired slip and corner behaviour for competitive lap times.

Any recommendations for gear mesh and inspection?

Set a conservative mesh and verify under load. Inspect gear faces for uniform contact and remove any debris that could accelerate wear.

Which diff oils suit racing setups?

Use oil viscosity to tune mid-corner behaviour: lighter oils increase differential action, heavier oils stabilise drive under power. Adjust in small steps to find optimum handling.