According to my owners manual I am NOT to jack the rear of the car by the center of the differential. Now I have heard the same about my 65, but many people have told me that they do it all the time, and I have done so myself without any problems. I am wondering if it is ok with the 98, or a definite no-no. As I said, the book says in BOLD CAPS do not jack by the center of differential. If it is not ok, please explain the reasoning, as it sure looks like heavy rigid parts.