Kingswood or Torana Front Bushes

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Original submission by T Nov 3rd 2006;
Back to Brakes Wheels and Suspension
The Upper and Lower Control Arms. Click to Enlargen. Photo by Circlotron

==Replacing the Control Arm Bushes:==
===Safety:===
It's vital that the vehicle be safely positioned so that it cannot roll in any direction
or fall from the jack stands needed to keep the car off the ground.
===Tools Needed:===
====For the Upper Control Arm on All Models:====
One short length of Water Pipe.
The Internal Diameter of the Pipe should be just large enough to fit over
the lip on the Upper Control Arm Bush.
The Water Pipe should be just long enough so that it can fit over the Old Upper Control
Arm Bush and still allow the Washer and Nut to be fit behind it.
New Lower Control Arm Bushes. Click to Enlargen. Photo by
Munromad.

====For the Lower Control Arm on HT and HG Holdens:====
One short length of Water Pipe.
The Internal Diameter of the Pipe should be just large enough to fit over
the lip on the Lower Control Arm Bush.
The Water Pipe should be just long enough so that it can fit over the Old Lower Control
Arm Bush and still allow the Washer and Bolt to be fit behind it.

HG Lower Control Arm Pivot. Photo by Blissy. Click to Enlargen.


The difference between HK and HT/HG suspension bushes is shown here Dusty's Shed

Blissy's Shed

HG Lower Control Arm Pivot. Photo by live-hk. Click to Enlargen.


====For the Lower Control Arm on HQ and Later Holdens:====
Access to a press or a Home Vise is necessary.
New HT/HG Lower Control Arm Bushes. Click to Enlargen. Photo by Blissy .

===Additional Information:===

Front Upper Control Arm bushes are the same across Torana and Kingswood
models from HT onwards.

The Front Lower Control Arm bushes are the same across Torana and Kingswood
models from HT onwards.


An additional note by v8slrtorana:

---

HZ (RTS) have a different part number on the lower wishbone rubbers.
HZ (RTS) have 3 rubber nipples on the bush.

Lower front trailing arm rubbers are different to lower rear trailing arm rubbers on toranas. Although they are physicaly the same dimensions, they have different part numbers, and the steel pin on the fronts is thicker then the rears.

---

Many people have suggested different ways of replacing them.

There used to be special tool kits you could buy but they were expensive.
I've done this job on both my cars so I'll share what I've found on this page.

On Kingswoods there is plenty of access to the Bushes so some people
hit them off with a cold chisel and hammer and replace them with a drift
and a hammer.

Others remove the Pivot Pin (the upper bar) and send the assembly
off to a repair shop.

The above is not possible on a UC because there is insufficient room to hit
the things with a hammer and the Pivot Pin cannot be removed until
after the Bushes have been removed which means you have to remove the Bushes
in the car anyway. Alternatively one can seperate the suspension from the
body, a job I wouldn't undertake unless I was rebuilding the whole car.

===Replacing the Upper Control Arm Bushes:===
For HQ and later, you can use the Car's Own Nuts and Washers to push the old Bushes off
and push the new Bushes on. HT and HG Lower Control Arm Bushes are held in by a Bolt and Nut.

HQ Upper Control Arm. Photo by Munromad. Click to Enlargen.


Removal of the Upper Bushes can be done with the aid of a short length
of water pipe that has an internal diameter large enough so that it can fit over the lip
on the end of each Bush and short enough so that the Nut and Washer can fit behind
it once it has been fitted.

1. Remove the Nuts and Washers from both sides of the Pivot Arm.

2. Fit the Water Pipe over the first Bush you want to remove.

3. Fit the Washer and Nut behind the piece of Water Pipe.

4. As you tighten the Nut you will see the Control Arm being pushed off the Bush.

5. Only tighten the Nut until the Bush has been moved the 0.5" it needs to
clear the step it lives on. Be careful that the Upper Control Arm does not come off the
other end.

6. Move the Water Pipe to the other Bush, fit its Nut and Washer and tighten the Nut until
the Upper Control Arm has moved the 0.5" off the step on the Bush. Allow the first
side of the Control Arm you worked to push against its Bush.

7. If the 1st Bush is stuck on the Pivot Arm by its Inner Metal Bush you'll need to loosen
it with taps from a Cold Chisel and Hammer, hitting on a line across the Car and levering the
Bush towards the Front for the Front Bush and towards the Rear for the Rear Bush.

===Replacing the Lower Control Arm Bushes:===
On models other than HG, the Lower Control Arm Bushes are held in place
by a Nut and Bolt.

1. Remove the wheels and seperate the Lower Control Arm from the Ball Joint as in
the Ball Jpint Page.

2. Jack the car up securely using jack stands and chock the wheels so the that the car cannot
roll forward or backward nor fall from the stands.
The car will need to be jacked up high enough to allow the Lower Control Arm to swing
rightdown almost to the vertical otherwise the Spring Tension will be excessive.

3. Seperate the Lower Control Arm from the Ball Joint as described in Ball Joint Replacement.

4. Remove the Shock Absorber and Sway Bar Drop Links.
Loosen and remove each Lower Control Arm Nut, then tap the Bolt from its hole.

===Replacing the Lower Control Arm Bushes on HT and HG Holdens:===

On HT's and HG's you can use the Car's Own Bolts and Washers to push the old Bushes off
and push the new Bushes on. They can be removed the same way that the Upper Control
Arm Bushes are replaced.

On other models it's best to unbolt the whole Lower Control Arm and work
with a press or if you have access to one, a Vise.

1. Remove the front and rear nuts and washers.

2. Find a short length of water pipe large enough to fit over the
lower bush and just long enough so you can still fit and tighten the
nut and washer.

3. Tighten the Bolt and watch the Control Arm become pushed off the bush.

4. Don't tighten the Bolt any more than you need to, about 0.5" will do it.
Make sure the other side of the Lower Control Arm is free to move. If not you will need
to loosen the inner sleeve of the opposite Bush with a Hammer and a Cold Chisel. Do not damage
the Pivot Arm that the inner Bush sits on.

5. Once you are at this point, move the water pipe to the other bush,
fit and tighten everything the same way.

6. To fit the new Bushes, press them on using their own Bolts and Washers.

You will need to locate something behind the Control Arm you are pushing the Bush into to stop the Control Arm drifting away from the Bolt and Washer.

===Replacing HZ Lower Control Arms:===
HZ Lower Control Arms are most easily installed back in the car with the vehicle jacked up
high enough to allow the Lower Control Arm to become vertical.

Install both the front and rearmost pivot Bolts and Nuts but leave them loose.
In the vertical position, the spring can most easily be positioned then the Lower Control Arm jacked into position.

Tighten the Lower Control Arm Pivot BOlts when the weight of the car is on them.

===Replacing UC Lower Control Arms:===
UC's have a step in the chassis that makes positioning of the Lower Control Arm bushes more
challenging. For this reason one way of re-installing the Lower Control Arm is to fit the
rearmost bolt and nut only and leave them loose until the spring has been installed.

Position the spring into the Lower Control Arm then raise the Lower Control Arm into position
by pushing it up with a jack. When it is in line with the bolt hole, lever the Lower Control Arm into position by using a 1 metre length of wood positioned in front of the stabiliser bar
pivot as a lever point. Make fine adjustments with the jack until the front bolt can be installed.

Once the front bolt has entered its location it will be necessary to adjust the jack height
and position until the rear hole lines up correctly with the bush and bolt.

The Lower Control Arm Bolts and Nuts should be tightened when the level weight of the car is placed on the Control Arms.

Front suspension components, sadly on a bent UC. Note the track rod, Disc Brake Caliper, Brake Hose, Upper and Lower control Arms. Click to Enlargen. Photo by KaliMajik.
  

 HK Premier Front End. Click to Enlargen. Photo by CondoHK69.

Failed HZ Upper Control Arm Bush. Typical of HQ - WB. Photo by Pugsly. Click to Enlargen.

===Links:===

CondoHK69's Shed

Nut and Bolt Method

Tie Rod Ends

===Terms:===

Terms
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