To remove and install the bushings, we
elected to build our own tool. We used a length of 5/8" ACME threaded
rod, two ACME nuts, different size washers, and pieces of different
diameter
pipe.
The idea here is to use the large diameter pipe to secure the tool on
the control arm and allow a space for the bushing to be pushed into. The
washers provide the different diameters necessary. One must fit inside the
bushing sleeve to push the bushing out, and a stack of washers is used
to span the end of the pipe. Nuts are placed at each end of the threaded
rod. As they are tightened the bushing is pressed out.
This first photo shows the pushing part
of the tool, it uses a length of pipe and washer that just fits inside
the bushing sleeve in the control arm.
On the other side, a
section of pipe is used that fits onto the control arm. This pipe needs
to be just the right size to sit flat on the arm.
Here is the device in action.
Two wrenches are used on the special ACME threaded nuts. The ACME thread
is the type you see on industrial machines and C-clamps, it provides a
much greater thread surface area so that it will not strip under extreme
force.
Here is the stock upper
control arm bushing. Note how the rubber has changed shape. This is its
natural position once it is out of containment of the stock bushing
sleeve. It still has a good grip on the bushing shaft. It would be difficult
to push the shaft from the bushing in this form.
We cut rubber bushing apart using hacksaw.
Be careful not to scratch
the shaft, it will be reused later.