About Nissan Leaf Spring
There is an important part in the suspension system named leaf spring. The leaf spring is consisted of several thin strips of metal, named leaves, arranged on top of each other to form a single curved piece. When you drive over a bump, there is an impact against the suspension, so the bending and friction between the leaves as they slide over each other absorbs your Nissan car’s weight. Generally speaking, you don't need to pay attention on your leaf spring unless they are quite old. After a longtime usage, the dirt among the leaves will make it sticky, further leading that the ride slightly stiffer. You need to lubricate it periodically to make sure it works properly. But if still doesn't work, you need to replace it. You can get a high quality Nissan genuine OEM leaf spring here with paying less money.