Hey! We have a 1999 Ford f350. It has an extended cab with a skinny bench seat in the back. It does NOT have tethers for forward facing. The local dealerships don't have and cannot get any retrofit kits as they're no longer made to install one. We have a baby that I'd like to get an all in one convertible seat for the truck. It is used for emergencies, drives to the park a mile away, and drop off/pick up of siblings from school 3 blocks away during the winter. I need to find a seat that does not require a tether when forward facing. Baby will be rear facing as long as possible so the higher rear facing limits the better too. Please don't use abbreviations as I am not well versed in them. Thank you everyone!