3-bearing, 10-tooth bevel drive gear for XB808 front/rear differential. Constructed from premium HUDY Spring Steel™, precision machined on a specific gear item as well as temperature addressed for maximum power, durability, minimal use, and extra-long lifespan. 3-bearing pinion gear is a primary squeeze into the XB808 2010-spec bulkhead, requiring usage of the unique #352077 collars and #355690 composite seal.