Coilovers : different size front/rear

[voucht]

Thank you Baz-r. Yes, modifying the rear upright is another solution I thought about too. But all of this is quite complicated. Of only I could be sure about the clearance between the shock absorber and the wheel rim, I could either keep or reject the simple solution consisting of moving the upper bracket outward. But for this, I need the measurements I described in my previous post.
So, if somebody read that, thanks in advance !
Sylvain