GMC General Truck Cab & Related

Frequently Asked Questions About GMC General Truck Cab & Related

What years do these GMC General cab parts fit, and how can I verify compatibility with my specific truck?

Most GMC General cab parts are designed to fit models from 1977-1991, though some components may have narrower year ranges. To verify compatibility, check your truck's VIN plate located on the driver's side door jamb for the exact model year and series. Cross-reference this with the specific part listing, as cab configurations can vary between single cab, extended cab, and crew cab models. When in doubt, contact us with your VIN and we can confirm fitment before ordering.

Are these replacement cab corners and rocker panels made from the same gauge steel as OEM parts?

Quality replacement cab corners and rocker panels are typically manufactured from 18-gauge steel, matching or exceeding OEM specifications. Premium aftermarket panels feature proper stamping depths, drain holes, and reinforcement ridges identical to factory parts. Look for parts that specify "heavy-duty" or "OEM-gauge" construction. Thinner gauge panels (20-22 gauge) are available at lower price points but may require additional reinforcement during installation.

What tools and welding skills are needed to install cab floor pans and structural panels?

Installing cab floor pans and structural panels requires MIG welding equipment (110V units work for most repairs), cutting tools (plasma cutter, cut-off wheel, or air saw), and basic metalworking tools including hammers, dollies, and clamps. Most installations need intermediate welding skills - you should be comfortable with butt welds, plug welds, and working with thin sheet metal. Factor in 8-16 hours for floor pan replacement and 4-8 hours per cab corner, depending on rust damage extent.

Do cab mounts and body bushings come as complete kits, and what's typically included?

Complete cab mount kits for GMC General trucks typically include 6-8 rubber or polyurethane bushings, steel sleeves, washers, and mounting hardware. Standard kits cover all factory mounting points between the cab and frame. Polyurethane bushings offer longer life and better vibration control than rubber but create a slightly firmer ride. Some kits also include radiator core support bushings. Always replace all mounts together to ensure proper cab alignment.

Are door seals and weatherstripping sold as complete sets, and how difficult are they to install?

Door seals and weatherstripping are available both as complete cab sets and individual pieces. Complete kits typically include door seals, window felts, vent window seals, and windshield gaskets. Installation difficulty varies - door seals attach with adhesive and clips (2-3 hours per door), while windshield gaskets require glass removal and professional installation is recommended. Buy quality EPDM rubber seals that resist UV damage and maintain flexibility in temperature extremes.