I have a 65 impala ss. I have factory lap type seat belts on the buckets, (which I don't think were required in 65, but were an option.) I also have grandkids (age4,5,6) who would like to ride in the car. Obviously, there's no provision for child seats in the back. I would like to hear from anyone who has a solution to this issue. I think there must be a simple way to install some kind if rings or brackets between the seat cushion and back cushion to tether the child seat, but probably lots of different ways to try to do it. I'm in Illinois, and I know adults 16 and up don't need belts in the back as long as the driver is over 18, but can't find any exceptions for pre 66 vehicles that apply to little people. Any help is appreciated.