Use a sissors jack under the frame rails, close to the wheel but on a flat surface. I would trust it more than the old bumper jacks that sometimes slip down. Get a jack from a similar weight car. I have used one from my 4 cyl minivan. Don't place any jack on sand or mud or it can tip over. My Mopar minivans have a short stud to fit the head of the jack onto, to assure its location.