I am ok with smashing myself through the steering wheel and windshield of my 53 panel, but I am building it to haul my 2 young boys around to burger joints and car shows. I could not live with myself if they got hurt in a crash, that’s why I am installing NEW aftermarket shoulder belts in mine with the original seats. There is a good spot behind the top of the doors and on the midway brace in the cargo area for both front and rear seats respectively. Something is better than nothing and let’s hope none of us ever crash our beautiful old rides.