Frequently Asked Questions About Peterbilt 359 Frame Steps & Acc.

What years and models of Peterbilt 359 do these frame steps fit?

Our frame steps are designed to fit Peterbilt 359 models from 1967 through 1987. They are compatible with both short hood and long hood variants. However, custom exhaust configurations or aftermarket modifications to your frame rails may affect fitment. We recommend measuring your frame rail spacing before ordering, as standard spacing should be 34 inches center-to-center.

Are these frame steps made from aluminum or steel, and which is better for my truck?

We offer both aluminum and steel options. Aluminum steps weigh approximately 40% less than steel, resist corrosion better, and are ideal for show trucks or weight-conscious applications. Steel steps are more budget-friendly, extremely durable for heavy daily use, and can be painted to match your truck. Most working trucks benefit from steel's durability, while show trucks often prefer aluminum's appearance and weight savings.

Do I need to drill holes in my frame to install these steps?

Most of our frame steps use existing frame holes or clamp-on brackets, requiring no drilling. Universal models typically include adjustable mounting brackets that clamp directly to the frame rail. However, some custom or vintage-style steps may require drilling 2-4 mounting holes. Each product description specifies the installation method. We always recommend professional installation if drilling is required to maintain frame integrity.

What is the difference between battery box steps, cab steps, and standard frame steps?

Battery box steps mount directly to your battery box and provide access to the cab from the driver's side. Cab steps attach near the cab area and are typically smaller, offering a single step up. Standard frame steps mount along the frame rails and often feature 2-3 steps for accessing different truck areas like the deck plate or fifth wheel. Consider your primary access needs when choosing - battery box steps are most popular for driver convenience.

Will chrome or polished aluminum steps require more maintenance than powder-coated options?

Chrome and polished aluminum steps do require regular cleaning to maintain their appearance, typically every 2-4 weeks depending on driving conditions. Use aluminum polish for aluminum steps and chrome cleaner for chrome versions. Powder-coated steps need less frequent attention - just soap and water cleaning monthly. For trucks operating in winter conditions with road salt, we recommend powder-coated or aluminum options as they handle corrosion better than chrome-plated steel.