Hot Racing replacement helical spiral pinion gear for Hot Racing RVO1337T gear set FEATURES: - Precision machined helical spiral cut gears offer inherently greater strength and smooth operation than the factory bevel cut gears YOU WILL RECEIVE: - One (1) 13-tooth differential pinion gear REQUIREMENTS: - Hot Racing RVO1337T gear set COMMENTS: - Only compatible with SRVO1337T (37-tooth differential ring gear) |