Sorry man.

I ran downstairs and grabbed my old fe3 springs. Both sides measure about 150mm at the biggest point of diameter.

It's been awhile since I looked at them close up. In all honesty, it looks like it wouldn't make a difference what side went where.
I will blame the camera man for my opinion
Guess I was basing it on how the SSCs look since I have mounted those at least 3 times, soon to be a 4th.