Having the shoulder strap anchor plate welded into the door frame is probably the best that one can do, as in Deve's example...however, as Bartamos explained, it's gonna have to deal with a lot of force in an accident. And the problem with a 3 point system that uses a retractor reel is that IF the shoulder anchor breaks loose during an impact, it is also an anchor for the lap belt (the whole system has to be anchored in three places in order to have lap belt tension)- so you will lose the tension on the lap belt as well....not a good thing at all!!
Last edited by Norcal Dave; 02/22/2018 7:17 AM.
