I know. This has been posted before but I still can't find an answer. On my '80 CM400E I want to install shorter rear shocks As I'm a little Vertically Challenged. If I'm reading right the original shocks are 12 11/16 long. The ones I'm looking at are 11 3/8 long. I guess I have to lower the front end also. Is it a question of getting the bottom frame even to the floor, front to back ?