






1973–1988 Squarebody Truck Full Interior Kit by Fesler
1973–1988 Chevy/GMC Squarebody — Full Interior Kit by Fesler (Dash Overlay, Door Panels, Kick Panels, Headliner, Interior Trim Panel)
This package gives your 1973–1988 Chevy or GMC Squarebody truck a complete interior overhaul using Arizona-made, hand-laid fiberglass components. Each piece is designed to replace the original panels with a cleaner, modern profile and ships in a smooth gel-coat surface that is ready to wrap or paint.
Fitment: Designed for 1973–1987 Chevy/GMC C/K Squarebody standard cab trucks. Some 1988 “R/V” carryover trucks with the same cab shell may also be compatible. Verify cab style and dash configuration before ordering.
What’s included in the kit
- Squarebody Dash Overlay — fiberglass overlay engineered to fit the factory Squarebody dash profile.
- Fesler Door Panels (pair) — full-coverage fiberglass door panels with clean, modern styling.
- Kick Panels — precise-fitting fiberglass kick panels, ready for upholstery or paint.
- Headliner Panel — rigid fiberglass headliner panel for a tight, uniform fit.
- Interior Trim Panel — rear cab section panel that finishes off the back wall area.
American-made quality: Every component is CAD-modeled, hand laid, and gel-coated in Arizona with consistent tooling and in-house standards.
Why builders choose Fesler interior components
- CAD-modeled fiberglass construction for strength and repeatable geometry.
- Smooth gel-coat finish arrives ready for upholstery, texture, or paint.
- Modern, cohesive styling across the dash, doors, and cab panels.
- Full-coverage design cleans up factory gaps and low-coverage areas.
- Arizona-built parts with in-house QC for consistent fitment.
Fitment & compatibility
- Vehicles: 1973–1987 Chevy and GMC C/K Squarebody standard cab trucks.
- Cab configurations: Standard cab trucks. Does not directly fit Suburban, Blazer, or crew cab interiors without modification.
- Dash notes: Intended for use with factory-style Squarebody dash structure. Custom or heavily modified dashboards may require additional work.
- Body-history note: Prior restorations, patch panels, or non-OE repair work can affect final alignment and may require extra adjustment.
Install expectations: As with all fiberglass interior components, plan for test-fitting and minor trimming to dial in your specific truck. Every Squarebody has its own history; final fit is always finished on the truck.
Finish & installation
- Ships in smooth gel-coat, ready for wrap, paint, or texture.
- Expect standard test-fitting and fine-tuning for perfect alignment.
- Follow standard upholstery or paint prep procedures for best results.
Custom upholstery available: Fesler can wrap and finish these panels in your choice of leather, vinyl, or suede with stitching, patterns, inserts, and details tailored to your build. Match your paint, door handles, speaker layout, and overall interior theme. Contact us for a custom Squarebody interior quote.
What’s not included
- Upholstery materials or labor (unless arranged as a custom interior package)
- Speakers, audio components, switches, or electronics
- Mounting hardware for switches or custom configurations
Recommended add-ons: Fesler billet door handles, window crank or switch kits, custom bench seats, and matching Fesler Detail products to finish the interior and exterior (all sold separately).
Common Questions
Does this replace all my factory panels?
Yes. This kit is designed to replace the major Squarebody interior surfaces with modern fiberglass pieces.
Will it fit my GMC?
Yes — it fits both Chevy and GMC C/K Squarebody trucks within the 1973–1987 standard cab range.
Is trimming required?
Most installs require light trimming and test-fitting. Trucks with prior bodywork or aftermarket parts may need extra adjustment.
Can these be wrapped?
Yes. All components ship in a smooth gel-coat ready for leather, vinyl, suede, texture, or paint. Fesler can also wrap and finish the kit in-house to match your build.
Will this work with my custom audio and console?
Yes, but you may need to modify panels for speakers, switches, and console layout. Many builders integrate this kit with custom consoles and audio systems.
Questions about Squarebody fitment, customization, or installation? Contact Fesler USA and our team will help you spec the right setup.
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Fesler Door Panel Designer
Visualize your custom door panels and interior before you order.
Interior systems that feel engineered, not improvised.
Every Fesler kit starts as a CAD model and is built in fiberglass with a smooth gel-coat finish. Panels follow the body lines, gaps stay tight, and there is room for stitching, billet trim, audio, and screens without hacking the car apart.
If you are finishing a full build and want the cockpit to match the level of the paint, stance, and drivetrain, this is where you start.

DASH
DOOR PANEL
CUSTOM SEATS
CONSOLE
STEERING WHEEL

Why Choose Fesler Interiors?
- Handcrafted Excellence: Each interior product is custom-made with meticulous attention to detail.
- Full Customization: Wrap your interior in the color combinations and materials of your choice.
- American-Made Craftsmanship: Designed, manufactured, and supported entirely in the USA.
- Seamless Integration: Perfectly designed to complement both classic and modern builds.
If you can dream it, you can build it around these parts.
Fesler fiberglass and steel pieces are the structure. Your choice of leather, vinyl, colors and stitching is what turns them into a one-off interior that matches the rest of the build.
Frequently Asked Questions
Answers to the top questions about Fesler Flush Mount and OEM Replacement Glass, including installation, performance, and what sets our glass apart.
Fesler offers custom upholstery services, allowing you to choose any color and material combination to match your vehicle's style. From door panels to seats, each piece is handcrafted to fit your vision perfectly.
At this time, Fesler's billet interior parts are available in raw and black finishes. These options are designed to provide a clean, modern look that complements any build.
Yes, Fesler interior parts are designed to fit a wide range of classic and custom vehicles. For specific fitment questions, contact us directly, and we’ll help ensure compatibility with your build.
Fesler interior products are custom-crafted, not mass-produced. They’re designed with precision and built using premium materials to elevate your vehicle’s interior, offering superior fit, style, and functionality compared to factory replacements.
