OK boys. I gotta say in all honesty and right-eousness:
Technically, strength and max safety says:
1. Tying to seats is no-no.
2. Tying to wood, in any way, is no-no.
3. Piece of mind is correct.
4. If you read the G's, you can't argue
Your kids and your family are not safe in an old truck. Just drive safely. If you use them as a daily driver, you are at way higher risk than a newer truck. But we do it all the time. The whole truck and it's restraint system has to be designed and engineered for safety belts. Our trucks are not.
Neither are:
Motorcycles
Horses
Skiing
ATV's
Boats
Running
Tractors
Water Park Slides
Rafting
Football
Military Combat