Frequently Asked Questions About Peterbilt 359 Clamps, Brackets & Mounting

Will these clamps and brackets fit my specific year Peterbilt 359?

Most of our clamps and brackets are designed to fit Peterbilt 359 models from 1967 to 1987. However, there were minor variations in mounting points between early models (1967-1971) and later models (1972-1987). Always check the product description for specific year compatibility, or contact our support team with your VIN number for exact fitment verification. Extended hood models may require different bracket lengths than standard hood configurations.

What material are these brackets made from, and will they rust?

Our brackets and clamps are typically manufactured from either 304 stainless steel or heavy-duty mild steel with zinc plating or powder coating. Stainless steel options offer superior corrosion resistance and are ideal for trucks operating in coastal areas or regions using road salt. Mild steel brackets with proper coating provide excellent durability at a lower price point but may require periodic inspection and touch-up in harsh environments. Material specifications are listed in each product description.

Do I need special tools or professional installation for these mounting brackets?

Most clamps and brackets can be installed with standard hand tools including wrenches, sockets, and screwdrivers. Some heavier brackets may require a drill for new mounting holes or a torque wrench for proper fastener specifications. Installation typically takes 30 minutes to 2 hours depending on the component. We recommend having a second person assist with alignment of larger brackets. Professional installation is not required but may be preferred for complex multi-bracket systems or if modifications to existing mounting points are needed.

Are these brackets strong enough to support heavy accessories like air cleaners or toolboxes?

Our brackets are load-rated based on their intended application. Light-duty clamps handle up to 25 pounds, medium-duty brackets support 25-75 pounds, and heavy-duty mounting systems can handle over 100 pounds when properly installed. Each product page specifies the maximum load rating. For accessories like large air cleaners or filled toolboxes, we recommend using grade 8 hardware and checking bracket integrity during regular maintenance intervals. Double-check that your frame mounting points are sound before installation.

What is the difference between universal and model-specific brackets?

Model-specific brackets are engineered to match exact Peterbilt 359 frame dimensions and mounting holes, ensuring perfect fitment without modifications. Universal brackets offer adjustable mounting slots or multiple hole patterns to fit various truck models but may require minor adjustments during installation. While universal options provide flexibility, model-specific brackets typically offer cleaner installation, better weight distribution, and maintain factory appearance. Consider model-specific options for critical components and universal brackets for custom applications.