Your ad here — 150k+ racers
Reach serious RC racers across our site and apps.
Klinik RC walks us through how they build the "perfect" gear diff, that is, one that doesn't leak diff oil!
Setting up your car? Ask the AI Mechanic
Get tuning, gearing, and troubleshooting advice tailored to your car. Free to start, no signup.
Traxxas at AMain
Browse the Traxxas brand store — kits, parts, batteries, chargers.
What is "Diffing Out" on RC cars?
RC Diff Tuning: 2 Gears or 4 Gears?
How to Get More Rear Traction
Off-road Differential Tuning with Dakotah Phend
Should You Use a Slipper or Differential in the Middle of your 4WD RC Car?
How to Build a Ball Diff for 1/10 Scale Off-Road Racing
How to Build a Ball Diff, with Ty Tessman
Ultimate RC Setup Troubleshooting Guide
How to Build the Perfect Ball Diff
Mugen MBX8 Diff Build Tips with Robert Batlle
