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Over time
the rubber bushings in your car will
deteriorate and wear out, they were also
designed for better comfort rather than
ultimate performance from the factory.
Replacing these bushing with new
polyurethane replacements will restore the
handling and performance of your Supra to
better than new levels. The subframe
bushings are made by Super Pro the part
number is SPF1447K. The rear control arm
bushings I recommend are also made by Super
Pro the part number for those is SPF1213K.
There are also rear control arm bushings
that are made by Energy Suspension part
number 8.3112G and can be ordered through
any of their dealers. If ordering online I
recommend www.suspension.com
for any Energy Suspension products.
Here is a
picture of the subframe bushing kit. It is
very expensive but well worth it in my
opinion. In my case the factory bushings on
my car had actually split, yours may be too
if you drive the car hard!

Here is a
picture of the Super Pro rear control arm
bushing kit. This kit comes with all new
sleeves and will be much less of a hassle to
install compared to the Energy Suspension
kit.

If you would
like a full kit that replaces all of your
bushings with polyurethane including the
rear subframe and control arms there is a
full kit offered by Super Pro the kit
contains the bushings listed above as well
as front control arm bushings with sleeves,
front strut rod bushings, and rear lower
shock mount bushings. Here is a photo of
what the kit includes.

Replacing
the bushings in the rear is a pretty easy
job, the hard part is that the entire rear
drivetrain has to be dropped. Support the
rear of the car with jack stands. Get it up
as high enough so you can work underneath
the car easily. You will need to remove the
exhaust after the catalytic converter.
Unbolt the driveshaft in the middle of the
car. Unhook the emergency brake cables from
the load balancer above the driveshaft.
Disconnect the hydraulic brake lines. Once
you have all of this done you will need to
support the rear subframe assembly with a
floor jack. Now loosen the 4 large bolts
holding the subframe to the car. Now let the
whole thing down slowly just in case you
have miss disconnecting something. Once it
is lowered you can slide it backwards and
behind the car to work on it.
To replace
the subframe bushings you need to press out
the original bushings and their shells.
Remove the bolt and bracket that holds them
in from the bottom side of the subframe. Now
with a 3 arm puller position it over the
bushing from the top like the picture shown
below. Use a nose on the 3 arm puller that
pushes on the center steel sleeve evenly.
The bushings should press out without too
much effort.

Once they
both are pressed out you can clean out the
holes and insert the new bushings. Grease up
the new bushings well with the supplied
grease. Press one half bushing in from each
side by hand. Lastly press in the steel
sleeve after greasing it up as well. If you
try to press in the bushings with the center
sleeve already in place there will be
nowhere for the air to escape and you won't
be able to press them together. Repeat on
the other side and you are done. Here is
what they look like installed.

Now unbolt
the control arms from the subframe and using
the 3 arm puller again press out the control
arm bushings. There is less area here for
the arms of the puller to grab onto so it
helps if you have a helper to hold the arms
tightly while you steady the puller and
tighten it down. Press them out by putting
the pressure on the steel sleeves just like
we did on the old subframe bushings. Here is
a picture to illustrate what's going on.

To install
the new bushings grease them up well with
the supplied grease and press them in by
hand. Make sure you put in the one that
matches the bushing you just pressed out
since the inner and outer bushings are
different. Now grease up the sleeve and
slide it into the bushing also. The Super
Pro bushings come in two pieces but install
basically the same way, install the two
halves by hand with plenty of grease and
then slide in the metal sleeve. Repeat the
process for the other 3 bushings and you are
all done. Here is a new bushing installed
and the sleeve is on its way in on the left,
on the right you see a completed assembly
ready to be bolted back on. On the center 2
bushings Energy Suspension does not supply
you with new sleeves, you are supposed to
cut the old sleeves out of those 2 inner
bushings and reuse them. Several owners have
said that the old sleves do not fit the
Energy Suspension bushings properly, that is
why I recomend spending the extra money for
the Super Pro control arm bushings. I used
some new sleeves that a member on the
celicasupra.com messgeboard had made by a
machinist as a one time group buy, so I was
unable to verify wether my old sleeves would
have worked or not. Again your best bet is
to spend the extra money for the Super Pro
kit that comes with all 4 sleeves.

Now just
reassemble the control arms to the subframe
and slide it all back under the car and bolt
everything back in in the reverse order you
took it off. In the pictures you can see
that I unbolted the subframe from the
differential but that was completely a waste
of time and was just extra work not to
mention the pain I had getting all the
differential bolts lined back up again, so
when you do yours just leave it attached.
You should note before you unbolt the
control arms as to what position the toe
adjusters are in, when you put them back
together put them in the same place and your
alignment should be good enough to get you
to the alignment shop.
Any
questions or comments should be adressed
to wjh@ufl.edu
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