Does any one have any clue if theres some kind of lock or something on the rear seats, I got the small one down but the larger one seems to be stuck.

 

Hey there is a release on the rear seatback that pulls either one or two cables that are attatched to the hinge. If it is not releasing the cable is probably broken or has come off of the handle or the hinge. You sholud be able to see where it is attatched down by the hinge and get it to release.