This is faulty logic. You are assuming that any crash you get into will be enough to rip metal. I'd venture to guess that most "fender benders" are not of sufficient strength to rip the bolts out. Even a low speed crash will put your face into the steering wheel with no belts.
Fraid not its science in a 30 mph crash G's=.0333 (M.P.H. X M.P.H.) / Distance
So
G = .0333 x 30 x 30 / 1/2ft. I'll presume that the head-on collision still allowed you to travel 1/2 Foot more. in a not very safe and secure way
G = .0333 x 30 x 30 x .5 = 14.985 g meaning me at 300lbs will exert a force
of 4495.5 lbs quite enough too rip out a poorly mounted seat belt. I am not endorsing Not wearing seat belts but rather if you do install them do them correctly.
Cletis I value Your input and advice and know how much engineering we used too put into seat belt mounting points on Landrovers and Rover cars, I ve also bought cars that where retro fitted and not in a safe secure way
Last edited by RyanT99; 02/18/2011 9:19 PM.