Frequently Asked Questions About GMC General Truck Roof Trim

What years and models of GMC General trucks will these roof trim pieces fit?

Our GMC General roof trim is designed to fit 1977-1996 GMC General models. However, there were minor variations between early models (1977-1987) and later models (1988-1996) in mounting hole patterns. Before ordering, verify your specific year and check if your truck has the standard cab or extended cab configuration, as this affects the trim length required. If you're unsure, contact us with your VIN and we can help confirm compatibility.

Are these roof trim pieces made of stainless steel or chrome-plated steel?

We carry both options depending on your needs and budget. Our premium line features 304-grade stainless steel trim that won't rust or pit over time, while our standard line uses triple-chrome plated steel. The stainless steel options cost more upfront but require less maintenance and last longer, especially in harsh weather conditions. Chrome-plated options provide an excellent mirror finish at a lower price point but may need periodic polishing and care to prevent corrosion.

How difficult is it to install GMC General roof trim, and what tools do I need?

Installation typically takes 2-3 hours and requires basic hand tools including a drill with metal bits, rivet gun, measuring tape, and masking tape for alignment. Most trim pieces use existing mounting holes, but some models may require drilling new holes. The trickiest part is ensuring proper alignment before final mounting. We recommend having a helper to hold pieces in place while you mark and drill. Detailed installation instructions are included with each order.

What's the difference between OEM-style and custom roof trim options?

OEM-style trim replicates the original factory specifications with the same width, mounting points, and finish as your truck came with originally. Custom options include wider profiles (up to 4 inches versus the standard 2 inches), different edge styles like rolled or beveled edges, and specialty finishes including brushed, polished, or powder-coated black. Custom trim often provides better coverage for existing rust or damage along the roof line while giving your truck a more distinctive appearance.

Will roof trim help prevent or cover existing rust along my truck's roof line?

Yes, roof trim serves both aesthetic and protective functions. It covers minor surface rust and prevents water from pooling along the roof-to-cab seam where rust commonly forms. However, any significant rust should be treated before installation. Clean the area thoroughly, apply rust converter, and consider using butyl tape or silicone sealant behind the trim for extra protection. The trim acts as a barrier against moisture but isn't a substitute for proper rust repair on severely damaged areas.