1. The Hurricanrangers and Goraijers don't become friends as fast as the Wind and Thunder Rangers do. The Gorijers fight with the Jakanja willingly at first. Where as the Thunder Rangers are lied to that their parents were killed by the Wind Ninja's Sentai. The Goraijers go on their own when they realized their new allies aren't honorable. They don't really jion the Hurricanrangers till more towards the end of the show.

2. Lothor does not have a counterpart in Hurricanranger. 

3. Cam's counterpart in the Sentai is Obrah, a woman. She is the sensei's daughter like Cam is the son of the Sensei in Ninja Sotrm. Cam becomes the Green Samuria Ranger. Obrah does not.

4. The Green Samuria Ranger's counterpart is a worrier who became stuck in morphed form. He does take several fake civilian forms before his true identiy is known. Played by Former Sentai actors.