Tamiya 42197 Gear Differential Unit II for TRF417 and TA05 Series [42197]

Tamiya 42197 - RC TRF417 Gear Differential Unit II

Price:

NZD$50.33

Brand:

Tamiya

Model:

42197

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Spares / Hop-ups - Tamiya - TRF417

Precision Gear Diff Built for High-Power Touring

The Tamiya 42197 TRF417 Gear Differential Unit II provides a sealed gearing option for drivers running high-power brushless motors. Use different viscosities of silicone diff oil to adjust corner entry and drive, while the enclosed mechanism reduces the routine servicing needed compared with ball diffs. This unit has seen use in competitive TRF environments and performs well on carpet surfaces.

Feature Highlights

Improved Drive Response: Optimised for higher output brushless setups to help maintain traction.
Low Maintenance Design: Enclosed gears minimise exposure and reduce wear seen in open diffs.
Aluminium Diff Cup Joint: A stiffer joint option that supports consistent torque transfer.
Compatibility: Compatible with TRF417, TA05 ver.II, and TA05-IFS R chassis.
Tuning Tip: Start tuning with 100000 weight silicone diff oil and move by small steps to find the best balance.

Is this gear diff a direct swap for the stock unit?

Yes, the unit is intended to replace the diff in compatible chassis without major modification, though checking gear mesh and alignment during install is important.

Which surfaces suit this diff best?

The sealed gear diff performs well on carpet and high-grip indoor tracks, and can be tuned for smoother asphalt by altering oil weight and setup.

Can I change the oil myself at the track?

Yes, swapping diff oil is a common trackside tuning move. Carry small bottles of different viscosities so you can test handling changes quickly between runs.

Are there upgrade parts I should consider later?

Common upgrades include harder joint options or different internal gearing if you want to explore alternate durability or handling characteristics, but start with the stock configuration first.