Link rod (link pin or sway bar link) replacement
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Link rod (link pin or sway bar link) replacement
Link rod (link pin or sway bar link) replacement cost
Have you ever wondered how a car manages to so easily stay on all four wheels when it’s driven around a corner?
Included amongst the wonderful components of a vehicle’s suspension system, there is a device called the sway bar (also known as a stabiliser bar or anti-roll bar) which works to prevent body roll. The sway bar typically attaches to the left and right control arms (or suspension) via link rods (link pins or sway bar links).
If the car is clunking from around the wheels, tyres are wearing unevenly and the steering is loose, then there is a good chance there is a suspension problem and it could be coming from the link rods.
If the link rods do need to be replaced this will cost around $100 to $300 depending on the vehicle make and model. This price is for replacing a pair as it is recommended to replace the left and right side at the same time.
What is the link rod?
The link rod connects the sway bar to the control arm/suspension. Usually, it is a tubular steel rod with connector points at each end. They can have differing connectors - threaded, spherical eye, stirrup type - with polyurethane (or equivalent) bushes. The bushes allow flex and control while absorbing motion between the sway bar and suspension connection but most importantly it will prevent rattling. Some link rods are made with ball joint ends to accommodate mobility requirements. Each vehicle will have specifically designed link rods to suit the fitment and suspension for individual models.
Link rods can be found at the front and rear on a majority of vehicles. The bushes can wear over time and will need to be replaced. However, in some cases the whole link rod will need to be replaced if the bushes can’t be individually replaced or the ball joints are failing. At times the link rod can be damaged if it has been hit by debris or damaged in an accident. Once it is bent, it won’t function correctly.
Symptoms the link rod needs to be replaced
- The link rod is bent
- Clunking noise from the wheel area
- Uneven tyre wear
- Loose steering
- Rattling noise from the wheel area
- Excessive vehicle body roll
How is the link rod replaced
Please note: fitment can differ between vehicles and the following is a guide for a common application.
- Link rod unbolted from the lower control arm (or suspension) and sway bar
- Old link rod removed
- Old and new part compared to make sure they are the same component
- New link rod fitted
- Bolts tightened
- The Vehicle is driven to test new set-up
Tips to remember
Fit new link rods in the exact same way they come packaged. Any washers and bushes should be fitted in the exact same order as they are positioned on rod before fitment.
Do not overtighten bolts when fitting the link rod. They should be firm but not too tight.
It’s a good idea to replace both the left and right link rods at the same time
How important is replacing the link rod?
The car will clunk and rattle and will become harder to control on cornering when there is a problem with the link rod. If left for too long, tyres can wear too and replacing tyres can be more expensive than replacing the link rod. Best to replace a link rod as soon as you can to make sure the car is handling well.
If you suspect a failed link rod on your car book an awesome AutoGuru mechanic to replace it for you, hassle free!
