Belt positioning seat won't be flush on the back

[Lapetitemel19]

Hi! I have spent so many hours researching. I tried a Cybex and Chicco kidfit and they both won't sit flush against the captain seat of our Ford Expedition. My child likes the kidfit for our other car. The cybex she said was too hard on the bottom. We are looking for a good seat for long drive. Kid tends to fall asleep and was slouching forward in a $40 basic graco. Would appreciate help!

 

[ketchupqueen]

Hi! How old and large is your child? If she's still within harness limits, that may be a solution until she's a bit bigger, as it can be very hard to find a booster to fit in some cars. Have you checked in your manual whether the vehicle headrest can be removed?