3-bearing, 10-tooth bevel drive gear for XB808 front/rear differential. Made of premium HUDY Spring Steel, accuracy machined on a certain gear product and heat addressed for optimum energy, durability, minimal use, and extra-long lifespan. 3-bearing pinion gear is a primary squeeze in to the XB808 2010-spec bulkhead, needing use of the unique #352077 collars and #355690 composite seal.