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How Does Truck Suspension Work?

April 9, 2021

We all drive our trucks, Jeeps, and SUVs day-to-day, but have you ever wondered what is going on under there. Today we are diving into truck suspension and how it works.



Table of Contents

1. How Does Suspension Work?

2. 4 Main Types of Truck Suspension

3. Aftermarket Options


How Does Suspension Work?

A suspension system is usually created with springs that absorb a portion of the shock when you run over a bump, allowing the tires and axle to move separately and weakening the impact to the rest of the truck.

If the truck's axle was connected directly to the frame, without any kind of suspension springs, you'd feel every small crack in the road because nothing would be in place to absorb the impact. In fact, you wouldn't even be able to control the truck, because the tires would bounce off of the pavement whenever you hit a bump.


A bouncy ride can jeopardize safety as well as comfort. 

Every single truck has got springs. When the vehicle rolls over a bump, the springs contract. Once over the bump, the springs extend. In this way, the tire rides up and over the bump while the vehicle still remains level.

To some point, the want for a soft ride is in conflict with the need for precise steering. So the shocks and the struts find a balance between the two.




4 Main Types of Truck Suspension

1. Leaf spring: in the form of spring used for suspension in Trucks (can be referred to as a semi-elliptical spring).

2. Torsion bar: A type of suspension that uses a torsion bar as its main weight-bearing spring. 

3. Equalizer beam: Connects the suspension of two or more adjacent axles of a vehicle with more than two axles.

4. Air spring Suspension: Uses pressurized air, which raises the chassis from the axle by pressure.




Aftermarket Options

Lift Kit: A lift kit raises the FRONT and REAR of your truck with either a spacer or a complete strut assembly depending on the kit

Leveling Kit: A leveling kit equally balances the height of the truck in the front and rear through a spacer that goes on the top or bottom of the front stock strut

We can get further in-depth in another blog if you guys are interested in learning more about trucks and their suspension systems. 


Aftermarket Suspension

Like always, remember that when you get a wheel and tire package you will get free shipping, mounting, and balancing. We also offer as low as 0% APR financing so that you can build now and pay later.

What suspension are you running? Let us know in the comments below. 

SHOP Suspension


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