I have a 1970 XL. I am wondering if I can use the terms XL and Galaxie interchangeably. Specically, I am shopping for rear coil springs. Moog says part CC805 works, which I thought, but I thought 8307 worked but they say 8309. I was wondering if there was anyone that knows and if there is a really good sport spring for the rear available. My title and registration simply say Ford, which it's the model which has flip up headlight covers but it's not an LTD.