What it Fits: - All CR18P Portal Axle Crawlers - Compatible with all existing hubs and links from the V1 axle. What's included: - V2 Axle Housing x 2 - Standard Diff Cover x 1 - Intermediate Diff Cover for mid axles on the Terranaut 8x8 x 1 Features: - Designed to make the differential locker to be flipped for counter rotating rear axle set-up when also wanting to run rear steer.  - Compatible and a direct replacement to any vehicle that has a V1 axle (the non flipable housing design). - Works as a steer axle for intermediate and rear axles. Part # 240575