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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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