Quote:
Originally Posted by Gunman
And your courage level, in regards to being under the car, when the pinch folds over, and you are wondering it the weight shift and movement will knock the jackstand out. 
Do it right, and live to do it another day. |
And when they do fold over they will still be supported by a jack stand and be up right. Zero worries........ unless your working under your car on a up hill/down hill on lose gravel while gale force winds are blowing to one side and there are earthquakes happening every minute and the whole car is rusted out, then yes that would be the only time to worry.
Sorry but your whole idea about pinch welds are just silly. Even from the engineering view of it you are afraid of nothing.
I personally seen pinch welds fold over and they never could throw a jack stand out. Unless you intentionally place the jack on its edge.
There is only less then an inch of travel if the pinch weld folds. Now think about worst case scenario, car is on four jacks stands at the pinch points one of the folds over, only one side has barely any movement. 3 corners are perfectly planted.
The only way your idea would be true is if the pinch welds are over 6" long. But they are not. Stop with the imaginary safety hazard. Better yet I encourage you and all the silly pinch weld scaredy cats to cut off their pinch welds. And grind them flat. You'll have a nice flat surface to jack the car. Although I don't recommend you change a flat tire on the side of the road that could be risky as to the angle and lose gravel/rocks one commonly finds on the side of the road.