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Title: Its immovable!
Review: Using the factory shoulder belt lock in my ford van made my sons car seat tip towards the seat belt buckle, the tighter I got the seat belt the more it tipped! While it was in tight, it still had a lot of play in the sideways motion of the seat. I got the mighty tight and reinstalled the seatbelt using a locking clip so I could bypass the shoulder belt lock. With the locking clip on one side and the mighty tight on the other the seat is not just straight, it is totally immovable! I can't even tip it a little bit! I know my son is safer thanks to this little device!
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