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Pelican Technical Article:

Replacing Drop Link Bushings

Time:

1 hour1 hr

Tab:

$10 to $20

Talent:

*

Tools:

13mm socket wrench, 13mm wrench, floor jack, jack stands, wheel chocks, safety glasses, torque wrench, lug wrench

Applicable Models:

Mercedes-Benz R107 (1972-80)

Parts Required:

Drop link bushings

Hot Tip:

You do not need to pull out the entire sway bar off to change the bushings

Performance Gain:

Better handing and smoother ride, eliminate clicking noise when changing directions or going over bumps

Complementary Modification:

Change the sway bar bushings, change over to polyurethane bushings for a tighter ride

The drop link connects the sway bar to the connecting arm. The bushings act to cushion the response. If you are starting to hear a knock sound or the suspension feels loose when you go around a corner there is a good chance your drop link bushings are starting to go bad. These bushings get a lot of wear and tear and can see a lot of oil from the engine as the car ages. They do wear out and should be checked 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.

Note: All hardware used on the suspension components is single use only. You must replace any hardware you remove with new hardware. The factory bushings are rubber, and you should not use any lubricant on them whatsoever. Lubricants, including Vaseline will cause the rubber to break down prematurely.

Remember that your car may have been serviced before and had parts replaced with different size fasteners used in the replacement. The sizes of the nuts and bolts we give may be different from what you have so be prepared with different size sockets and wrenches.

Before you do any work on your car it is important that you wear safety glasses and work gloves. If you have to jack up your car, make sure to use jack stands and chock your wheels as well as applying the parking brake. Protect your eyes, hands and body from fluids, dust and debris while working on your vehicle. Never work on your vehicle if you feel the task is beyond your ability. Always disconnect the battery before working on your car.

Lift and support the front axle of the vehicle.
Figure 1

Lift and support the front axle of the vehicle. Place a jack stand under the lower control arm. You have to remove the tires to perform this job, which makes access much easier since you may not have the use of an automotive lift. See our tech article on jacking and supporting your vehicle and removing the front tires. 

I placed a jack stand under the chassis as well.
Figure 2

I placed a jack stand under the chassis as well. The procedure to replace the drop link bushings is the same for both the left and right sides. These pictures are of the passenger side of the vehicle. It is recommended you replace both sides at the same time to keep your handling neutral. Placing a jack stand under the chassis provides additional safety.

The drop link is be found connecting the sway bar to the connecting arm.
Figure 3

The drop link is be found connecting the sway bar to the connecting arm. The bushing can become cracked over time.

Using a 13mm wrench, loosen and remove the bolt holding the drop link.
Figure 4

Using a 13mm wrench, loosen and remove the bolt holding the drop link.

You may have to hold the bolt below the drop link.
Figure 5

You may have to hold the bolt below the drop link.

Using a 13mm socket, continue to loosen the drop link bolt.
Figure 6

Using a 13mm socket, continue to loosen the drop link bolt.

Remove the bolt that holds the bushings.
Figure 7

Remove the bolt that holds the bushings. Inspect the bushings for cracks. Installation is the reverse of removal.

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Page last updated: Fri 12/2/2016 03:05:29 AM