CoupeGT and 4000 springs

[timofej.crift at att.net]

Question: Are the CoupeGT and 4000 suspension springs
interchangeable?

I went searching through the archives on my quest for a
spring upgrade for my CoupeGT and it seems that there is
no definitive answer as to whether or not H&R springs or
Eibach springs are superior. I guess it is a matter of
personal preference.  There is one piece of information
that would force my decision.  I have seen listings for
4000 springs from Eibach.  If they won't fit, I will get
H&R's.  If they do, I will procrastinate and accept any
new advice.

Thanks,

Tim Crift
timofej.crift at att.net

'84 CoupeGT
'95 90Q