Diff outdrive adapters for XB808 front/rear differential made of self-developed, world-renowned HUDY Spring Steel™ - the toughest steel material available. The outdrives have been strategically machined to be lighter than the standard #355062 diff outdrive adapters. Special elongated design secures the drive shafts so they do not fall out in heavy jumps. For serious racers who are conscious of weight savings. Set of 2.