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The Hall Bros provide another excellent explainer video, this time with a focus on increasing rear traction, primarily for 1/10th scale off-roaders. They go through several options and explain how each is useful on different parts of the track.
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What is "Diffing Out" on RC cars?
Choosing 4WD Diff Oil for Off-road
How Often to Rebuild 1/8th Scale Off-road Diffs
How to Tune an RC Car for a Rough Track
How to Tune Your 1/8 Off-road Car for Bumpy Tracks
Tuning a 1/8 Scale Off-road Car for High-Grip Tracks
Off-road Differential Tuning with Dakotah Phend
How to Choose Diff Fluid for your Off-road RC Car
Aerodynamics for Off-Road RC Cars, with Max Mört
RC Diff Tuning: 2 Gears or 4 Gears?
