Board Thread:Questions and Answers/@comment-5057022-20130523181702/@comment-418817-20130523192732

This is a very good question actually. The Gekiranger and Abaranger teams have a nigh-identical team scheme in that both have a three-man core team, a differently dressed "additional ranger" as an addition to the core and a wildly redesigned final member with a powerhouse mecha, so I can definitely understand the confusion there. However, going back to the source material, Super Sentai, Gokaiger classifies GekiChopper/Rhino Ranger among the core rangers while AbareKiller/White Dino Ranger is placed among the sixths. Going by this and applying it to the adaptation, that's where they differ.