I am installing new rear shoes on my midget. I have a couple of questions. 1) two springs. one straight one with a center drop down. Which is the upper which is the lower? 2) Do you attach both upper and lower springs at the same time and then work the shoes in place? or do you start with the upper. Get the shoe in place and them work on the lower? or any suggestions on how to install them. does anyone have a photo of what it looks like when assembled.