Hot Racing Steel Helical Diff Ring/Pinion - BLX 3S 4S [ATF9337]

Steel Helical Diff Ring/Pinion - BLX 3S 4S


Hot Racing 



Sign in or create an account to earn 4 loyalty points with each purchase of this product!

Out of stock

Hot Racing steel helical spiral 37T/13T gear set for Arrma 1/10 4WD
The 37T/13T gear set is the stock gear ratio


  • Precision machined helical spiral cut gears offer inherently greater strength and smooth operation than the factory bevel cut gears
  • High carbon steel construction
  • Stronger than the stock bevel Plastic gears
  • Maintains the stock 37T/13T ratio

In the Package:

  • One (1) 37 tooth diff spiral cut ring gear
  • One (1) 13 tooth spiral cut pinion gear


  • Weight: 3.2oz (90g)


  • ARAC4023 Composite Diff case Cover Or AFT11C01 Aluminum Diff case Cover
  • Installation following kit manual
  • Medium threadlock (e.g. blue Loctite) if screws are threaded into metal
  • Hot Racing SPL10G05 high temp grease recommended for the diff gear
  • Use Silicone Diff Fluid for Gear Diffs inside


  • Replaces bevel-Plastic gears
  • ARAC4023 you will only use the differ cover plate do not need to use the back plate

No reviews at this time.


Write a review


Only registered users can report abuse.

Log in or create an account .
Only registered users can vote for a review.

Log in or create an account .