From wheels to brakes, vehicles rely on a long list of car parts to function. Arguably, one of the most important is the chassis. Without it, a car couldn't exist. Follow this guide to get a better understanding of exactly what it is, why it's important, and the different styles available. 

What Is a Car Chassis?

Essentially, the chassis is the foundation of a vehicle. Its goal is to provide structural support as well as effectively carry the weight of the car’s parts. Composed of aluminum or steel, the extent of the design varies by vehicle type, size, and purpose.

Typically, the base includes other car parts, like the suspension, wheels, and exhaust. The system comes in two main styles: body-on-frame and unibody.

What Types Are There?

Body-on-Frame Chassis

As the name suggests, a body-on-frame chassis is designed with the body sitting on top of the frame. This arrangement makes it easier to have repairs done because the two sections are detachable. However, the separation also makes steering more difficult for drivers.

While they used to be the go-to style, body-on-frame chassis are less common in modern vehicle manufacturing. They're typically reserved for heavy-duty vehicles, like semi-trucks.

Unibody Chassis

Most standard vehicles spotted on roadways sport unibody frames. With this variation, the body and framework are one solid piece. Combining the two sections into one provides a significantly lighter finish, which helps boost fuel mileage. It's also easier to control behind the wheel. However, repairs are more complicated and—consequently—more expensive. 

Keep your vehicle in working order by turning to AAW Auto Parts in Pasco, WA. For over 20 years, drivers and auto shops across Franklin County have depended on the family-owned business for cost-effective car parts. The local auto parts store stock top-quality merchandise from the industry's most trusted brands. Review their selection online, and request assistance today at (509) 547-6000.