Just throwing this out for all to see. I wonder how long it will take for this stuff to find it's way onto a car that will suddenly "become" a real JL8 car.. I guess that is all the more reason that factory documentation is a must when buying these cars.
If it indeed a service package rear setup, it was available over the counter and did not come from a factory JL8 car. I don't realy see a problem. It's your money, build it the way you want. Just don't go lie about it. The experts know better and the amatures learn the expensive way. The crooks have to live with themselves.