Jerry,
BTW, I hear what your saying about the "toy" floor jack. I would never trust a cheap jack and would never put myself under the truck while using one. I bought a cheap one because I really don't plan on doing this again.
I thank you for your concern. At 64 I don't want to get crushed. When you get nervous about something that's the good Lord warning you! Now I can go look at my brake system.