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360 Degree Guide to Leaf spring shackle and Leaf spring hanger

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sujan industries
360 Degree Guide to Leaf spring shackle and Leaf spring hanger

In any automotive vehicle, leaf spring shackle and leaf spring hanger are very crucial parts. The shackle ensures the best quality ride and suspension travel of a vehicle. For any off-road vehicle or other heavy vehicles or truck, shackles act as the default suspension system.

 

What are Leaf Spring Shackles and Leaf Spring Hangers?

Leaf spring is the standard suspension system of any vehicle like cars, trucks etc. During pick up the shackle of the leaf spring helps to balance the car as well as absorb unwanted vibrations rising out of the uneven road surface or speed bumps. Without a shackle, the leaf springs can not work properly. 

Leaf spring hanger is also a key part of any suspension system. In the suspension system of any van or pick up truck, the hangers provide the frame connection for the leaf springs and shackles. The hangers are made of cast steel or stamped steel and are secured to the frame during the assembling process of the vehicle. 

The hangers can also be referred to as the Rear of Rear (ROR) or Front of Rear (FOR) on the rear leaf spring applications and Rear of Front (ROF) or Front of Front (FOF) on the front leaf spring applications. The shackle is a connection that lets the leaf spring change its length when it is loaded and unloaded. If there is no shackle link, the suspension would have no way to bend. 

 

How long does a leaf spring shackle and hanger last?

The longevity of any leaf spring shackle and hanger depends on a few factors. For example, the age of the vehicle, frequency of the usage of the vehicle, the condition of the road and the weather where the vehicle operates etc. 

Naturally, in an older and heavily driven vehicle in a rough weather condition, the hanger and shackle might not last long. Whereas, in a well-maintained automobile, the springs can last more than 1,00,000 miles. An average lifespan of a set of leaf springs is around 2,00,000 miles. 

These numbers might vary from case to case. So you need to stay alert for the symptoms of a worn-out suspension part. Also, rather than having a strict maintenance routine, you can watch for the visible symptoms of when to repair the leaf springs hanger and shackle and get them repaired as and when required. This way you’ll be able to ensure a smooth ride and improved vehicle condition. 

 

When should you replace a leaf spring shackle and hanger?

There will be a few indications if the hanger and the shackle of a leaf spring are damaged and need a replacement. So you need to be aware of these signs and inspect them from time to time to ensure that the vehicle is in good condition. The indications are as follows:

  • You’ll see clouds of dust when the car starts.
  • The vehicle will be abnormally tilted on one side.
  • A rough and bumpy ride even on the plane surface.
  • You’ll get to hear some abnormal noises like snapping, clunking etc. 
  • The springs might get damaged frequently due to worn out shackles and hangers. 

 

How to install a new leaf spring shackle and hanger?

So when you notice the above-mentioned symptoms it’s time to replace the damaged shackle and hanger and install anew. The steps to install a fresh shackle and hanger are as follows:

  • With the floor jack first, pick the rear end of the car.
  • Put the jack stand under the car and take them apart to uphold the suspension.
  • Release the mounting bolt at the lower part that links the spring and the shackle. 
  • Now take the damaged shackle out and install a new one with a new mounting bolt.
  • Then align the shackle with the spring’s eye and join them tightly with mounting bolts.
  • After you finish, just lift the car and take out the jack stand.
  • Using the floor jacks take the vehicle down and inspect the installed shackles properly. 
  • Lastly, under the weight of the car, make sure you have tightened the bolts properly.

This replacement will ensure a smooth ride of the car on different road surfaces and also extend its longevity. Sujan Industries is the best manufacturer and supplier of leaf spring shackles and leaf spring hangers in India and abroad. So for any such requirements, get in touch with us. 

 

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