Car Seat Base Question

Melis

So my daughter had one of the Graco Click Connect infant seats when she was a baby in 2016. I have two bases with it that are “extend to fit”, which I love because if you have a tall baby, it gives them more room to rear face.

Anyway, I’m due next week & have a new Graco Click Connect car seat for my son with a regular base.

My question is, can I use the old bases? I’d rather. It clicks right in & seems to work fine, just not sure of the safety since they didn’t come with this seat.

Thanks!