Method
1: If you would like to keep your original spring perch location,
you can simply unscrew the top screw of your insert strut and
slide the collar on. This would require a very short collar, or you
will not be able
to
screw the top screw back on top. If you have collars that are too
long
then they will need to be trimmed. Pictured below is a Ground
Control
kit that comes with very short collars. Your range of height
adjustment
will be very small. The good news is that if you are using
the
original spring perch, it won't drop your car down too much anyway.
Finally
you must secure the collar so that it is not loose based on the
instructions
of the manufacturer.
Method
2: The proper way to do the installation is to have the original
spring
perch machined off, and having the new collars welded on. This
will
also keep you away from possible rattles from loose suspension parts.
It
would be ideal in this situation to get longer collars so that your range
of
adjustment will be greater. Of course you can't go down too far
with-
out
having to remove the original brake line tabs.
After
either method 1 or 2 is performed, it's a matter of putting the
top
spring holder (hat) on top, and bolting on your original strut top.
Some
hats have a hole that is too small for the strut rod to go through.
In
this case you will have to drill or machine it out to size. Also
pictured
below
is a finished product using the weld on method. (MR2 pictured)
Spring Rates and
Drop Height
We offer the spring
rates for comparison between brands, also as helpful information when
choosing custom spring rates. Spring rate figures are in lb/in
domestic figures, to convert to kg/mm international, divide figure by 56.
If there are 2 values listed, that means that the spring starts at one
rate, and ends at another rate under full load. There are some
conflicting figures for stock, based on source, and location, so if you
have any missing or correct information please email.
