Parts/Drivetrain/Differentials & diff parts/Hot Racing Steel Helical Underdrive Differential Ring/Pinion for Traxxas TRX-4 (35T/10T)
Hot Racing Steel Helical Underdrive Differential Ring/Pinion for Traxxas TRX-4 (35T/10T)
Hot Racing

Hot Racing Steel Helical Underdrive Differential Ring/Pinion for Traxxas TRX-4 (35T/10T)

Part # HRATRXF95105.0(1)
Where to buy
$38.88
AMain Hobbies
Seen Oct 12, 2026
$38.88Buy
Prices are as last seen at the store; stock is not tracked.

About this part

The Hot Racing Traxxas TRX-4 Steel Helical Underdrive Differential Ring/Pinion Gear is a spiral cut overdrive 35T/10T gear set option for the Traxxas TRX-4.

Features:
  • Provides greater strength than factory straight cut gears
  • Made from high carbon steel
  • Less vibration than stock TRX-4 gears
  • Provides 9% overdrive when compared to the stock (34T/11T) gearing
  • Works front or rear
Includes:
  • (1) 35T Spiral Cut Ring Gear
  • (1) 10T Spiral Cut Pinion Gear

Reviews5.0 · 1 review

Brad DunnVerified owneron Hot Racing Steel Helical Underdrive Differential Ring/Pinion for Traxxas TRX-4

Got a set for both front and rear because 11t pinion is as small as it gets on a 5mm shaft. Made a nice difference in creepability without killing the top end. The gears are nice quality and the heli cut is a smoother operation and noticeably quieter than stock straight cut gears. I would recommend to anyone as it is a solid driveline upgrade.

Builds using this part

No builds use this part yet — add it to yours from the build editor.