This is a Hot Racing Arrma 4x4 BLX Steel Helical Diff Ring and Pinion, an optional 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 gears. (it has been updated to 15g lighter)
• High carbon steel construction
• Stronger than the stock bevel Plastic gears
• Maintains the stock 37T/13T ratio

Weight: 32.35oz (66.75g)

 

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

To be used with ARAC4023 Composite Diff case Cover Or HRAATF11A01 Aluminum Diff case Cover.