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Front Sway Bar Bushing Replacement
 
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Pelican Technical Article:

Front Sway Bar Bushing Replacement

Steve Vernon

Time:

1 hour1 hr

Tab:

$8 to $50

Talent:

**

Tools:

17mm, 13mm (2) socket or wrench, floor jack, jack stands, wheel chocks, safety glasses, lug wrench, torque wrench

Applicable Models:

Porsche 944 Turbo (1986-89)

Parts Required:

Bushings

Hot Tip:

Do NOT use Vaseline on the bushings

Performance Gain:

Better ride quality

Complementary Modification:

Install new struts

The front sway bar right side bushing sits close to the power steering pump and tends to get fluid on it and degrades quickly. Even if these bushings do not get fluid on them they get a lot of wear and tear and they do wear out. You should check the bushings every 30,000 miles. If you are going to be replacing the bushings it is a good idea to completely drop the bar and clean and paint it while you are performing the work. If you want a little sportier handling performance from your Porsche, you may want to consider upgrading your stock bars to a thicker or sportier bar and bushing combination or one of the aftermarket adjustable set ups.

You will need to remove the lower engine tray to replace the bushings so please see our article on engine tray removal for additional assistance.

The factory bushings are rubber. When installing them you should not use Vaseline, as it will cause the rubber to break down prematurely.

The factory front sway bar on the Porsche 944 and 951 mounts to the lower control arms (green arrows) and two brackets (red arrows) attached to the front frame rails.
Figure 1

The factory front sway bar on the Porsche 944 and 951 mounts to the lower control arms (green arrows) and two brackets (red arrows) attached to the front frame rails.

Each side is the same with a drop link secured to the control arm by a 17mm nut (red arrow) and two 13mm nuts and bolts holding the bar to the bracket (yellow arrow).
Figure 2

Each side is the same with a drop link secured to the control arm by a 17mm nut (red arrow) and two 13mm nuts and bolts holding the bar to the bracket (yellow arrow).

You can see in this photo how the power steering fluid has gotten to the bushing and caused it to swell (red arrow).
Figure 3

You can see in this photo how the power steering fluid has gotten to the bushing and caused it to swell (red arrow).

Use a 17mm wrench or socket and remove the single nut on the top of the link (red arrow).
Figure 4

Use a 17mm wrench or socket and remove the single nut on the top of the link (red arrow). The nut sits on top of the link, which is a solid piece. So you do not need to counter hold the link like you do on some systems.

There is a washer (red arrow) and bushing on the top of the control arm.
Figure 5

There is a washer (red arrow) and bushing on the top of the control arm. Remove these noting the orientation of the washer for installation.

Use two 13mm sockets or wrenches and remove the two nuts (red arrows) and bolts (yellow arrows) from the mounting brackets.
Figure 6

Use two 13mm sockets or wrenches and remove the two nuts (red arrows) and bolts (yellow arrows) from the mounting brackets.

Make sure to give this area a good cleaning before reinstalling the bar (red arrow).
Figure 7

Make sure to give this area a good cleaning before reinstalling the bar (red arrow).

With everything detached, pull the bar down and out from the control arms (red arrow) and brackets.
Figure 8

With everything detached, pull the bar down and out from the control arms (red arrow) and brackets.

The links will slide off the end of the bar (yellow arrow).
Figure 9

The links will slide off the end of the bar (yellow arrow). You can replace the link bushing by pressing it out and pressing in a new one. There are two rubber bushings that go on the link, one below the control arm and one above (red arrows).

If the bar bushing is swollen, it is easier to cut off the ends with a blade (red arrow) and then slip the bracket off the bushing and the bushing off the bar.
Figure 10

If the bar bushing is swollen, it is easier to cut off the ends with a blade (red arrow) and then slip the bracket off the bushing and the bushing off the bar. Make sure to clean and paint any section of the bar that needs it. The bushing should dry fit. Some people use a little dish soap to assist with installation but you do NOT want to put Vaseline on the bushings, as it will degrade them. Installation is the reverse of removal.








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