Moparman1972 wrote:Why never from the K-frame? How're you supposed to get both front wheels off of the ground at the same time?
Another good reason for never jacking at the K frame so that the wheels are hanging, is this. You risk damaging the front end bushes.The upper control arms are bushed in two places on the chassis. These bushes are usually rubber and once the upper control arm-to-chassis bolts are tightened, these bushes do not move. As the arms move up and down during the normal course of driving, these rubber bushes flex/ twist within their steel washer cups but do not turn. So when you jack the K frame so that the wheels hang totally suspended, the suspension travel is now far more than normal. These bushes are stressed far beyond their normal range. If they are getting old and not as flexible as new,, then the liklihood of them tearing or cracking is high.
The best way to jack the front end is under each lower control arm, close to the wheel, one at a time with jack stands when the desired height is resched, as Dave said. Or, behind the front wheels there is a strong point in the chassis as well. This is usually where the hoist pads are placed.