Frequently Asked Questions About GMC General Truck Frame Steps & Acc.

What years and models of GMC General trucks do these frame steps fit?

Our frame steps are designed specifically for GMC General trucks manufactured between 1977 and 1996. These fit both single and tandem axle configurations. However, trucks with custom frame modifications or non-standard wheelbases may require additional measurements. We recommend checking your frame rail width and comparing it to the product specifications, as some aftermarket suspensions can affect fitment.

Are these frame steps made from aluminum or steel, and will they rust?

Most of our GMC General frame steps are constructed from heavy-duty steel with either a chrome-plated or powder-coated finish. Chrome options provide excellent corrosion resistance but require regular cleaning to maintain their shine. Powder-coated steps offer superior rust protection and are ideal for trucks operating in harsh weather conditions. Aluminum options are available for specific models and provide the best weight savings and corrosion resistance, though they typically cost 20-30% more than steel alternatives.

How difficult is the installation, and what tools do I need?

Installation typically takes 2-3 hours and requires basic hand tools including a socket set, drill with metal bits, and a torque wrench. Most frame steps come with pre-drilled mounting brackets that align with existing frame holes, though some drilling may be required depending on your truck's configuration. Professional installation is recommended if you're uncomfortable drilling into the frame. Always use grade 8 bolts and apply anti-seize compound to prevent corrosion and ensure future serviceability.

What's the weight capacity of these frame steps, and will they support heavy use?

Our frame steps are engineered to support 500-600 pounds per step, depending on the specific model. The mounting brackets are reinforced at stress points and tested for commercial use. For operators frequently entering and exiting the cab multiple times daily, we recommend inspecting mounting bolts every 6 months and retorquing to specification. Steps with grip tape or tread plates provide better traction in wet or icy conditions and are strongly recommended for safety.

What's the difference between cab-mounted and frame-mounted steps?

Frame-mounted steps attach directly to the truck's frame rails and provide a more stable, permanent mounting solution that doesn't stress the cab structure. They're ideal for heavy-duty applications and older GMC Generals where cab mounts may be worn. Cab-mounted steps attach to the cab itself and move with the cab on its suspension, which some drivers prefer. Frame-mounted options typically last longer and handle abuse better, while cab-mounted steps are easier to remove for maintenance access.