# OEM Squarebody Parts > OEM Squarebody Parts is a US-based online store specializing in replacement parts for 1973-1987 Chevrolet and GMC squarebody trucks (C10, C20, C30, K10, K20, K30, K5 Blazer, Suburban, GMC Sierra, GMC Jimmy). We stock body panels, weatherstripping, interior parts, exterior trim, and mechanical components, with staff who know these trucks. ## About - We sell parts for one platform only: the 1973-1987 (and 1991 Blazer/Suburban) Chevy and GMC squarebody. That focus means correct fitment and real support. - Chevy and GMC shared the same body and chassis for 1973-1987, so the large majority of parts fit both brands interchangeably. - Parts are OEM-quality replacement or NOS components made to original factory specifications. ## Shipping & Returns - Free shipping on orders over $1,499. - Most orders arrive in 4-7 business days. - 30-day returns on unused parts in original condition (email support for a return authorization first). ## Payment Methods - PayPal, Zelle, Chime, Apple Pay, Cash App, Interac e-Transfer. ## Contact - Email: support@oemsquarebodyparts.com (we reply within 1 business day). - Fitment help: tell us the year, model (C10, K10, K5 Blazer, Suburban, crew cab, etc.), cab style, bed length, and 2WD/4WD. ## Key Pages - [Homepage](https://oemsquarebodyparts.com/) - [Shop All Parts](https://oemsquarebodyparts.com/shop/) - [About Us](https://oemsquarebodyparts.com/about-us/) - [Contact](https://oemsquarebodyparts.com/contact-us/) - [FAQ](https://oemsquarebodyparts.com/faq/) - [Refund and Returns Policy](https://oemsquarebodyparts.com/returns-refunds/) - [Privacy Policy](https://oemsquarebodyparts.com/privacy-policy/) ## Product Categories - [Body Panels](https://oemsquarebodyparts.com/product-category/body-panels/) - [Exterior](https://oemsquarebodyparts.com/product-category/exterior/) - [Interior](https://oemsquarebodyparts.com/product-category/interior/) - [Mechanical](https://oemsquarebodyparts.com/product-category/mechanical/) - [Weatherstripping](https://oemsquarebodyparts.com/product-category/weatherstripping/) ## Buying Guides & How-Tos - [1973-1987 Squarebody Chevy and GMC: Model Years, Cab Styles, and What Changed](https://oemsquarebodyparts.com/1973-1987-squarebody-chevy-gmc-model-years-guide/) - [Best Squarebody Trucks to Buy: 1973-87 Chevy C10 Buying Guide](https://oemsquarebodyparts.com/best-squarebody-trucks-to-buy-chevy-c10-buying-guide/) - [C10 vs K10: Squarebody 2WD vs 4WD Differences, Fitment, and Parts](https://oemsquarebodyparts.com/c10-vs-k10-squarebody-2wd-vs-4wd-differences-fitment-parts/) - [Squarebody Bed Floor Replacement and Restoration Guide](https://oemsquarebodyparts.com/squarebody-bed-floor-replacement-restoration-guide/) - [Squarebody Body Panel Guide: Fenders, Doors, and Hood Replacement](https://oemsquarebodyparts.com/squarebody-body-panel-guide-fenders-doors-hood/) - [Squarebody Brake Line Replacement: Complete DIY Guide](https://oemsquarebodyparts.com/squarebody-brake-line-replacement-guide/) - [Squarebody Bumper Replacement Guide: Front and Rear Options](https://oemsquarebodyparts.com/squarebody-bumper-replacement-guide/) - [Squarebody Cab Corner Replacement: Complete Rust Repair Guide](https://oemsquarebodyparts.com/squarebody-cab-corner-replacement-rust-repair-guide/) - [Squarebody Chrome Trim Restoration: Emblems, Moldings, and Brightwork](https://oemsquarebodyparts.com/squarebody-chrome-trim-restoration-guide/) - [Squarebody Cooling System: Radiator, Water Pump, and Overheating Fixes](https://oemsquarebodyparts.com/squarebody-cooling-system-radiator-water-pump-guide/) - [Squarebody Engine Mounts: When to Replace and How](https://oemsquarebodyparts.com/squarebody-engine-mount-replacement-guide/) - [Squarebody Exhaust System Guide: Headers, Manifolds, and Full Replacement](https://oemsquarebodyparts.com/squarebody-exhaust-system-guide/) - [Squarebody Firewall and Cowl Panel Restoration Guide](https://oemsquarebodyparts.com/squarebody-firewall-cowl-panel-restoration-guide/) - [Squarebody Floor Pan Replacement: Step-by-Step Guide for 1973-87 Trucks](https://oemsquarebodyparts.com/squarebody-floor-pan-replacement-guide/) - [Squarebody Fuel Tank Replacement: Everything You Need to Know](https://oemsquarebodyparts.com/squarebody-fuel-tank-replacement-guide/) - [Squarebody Glass Replacement: Windshield, Rear Window, and Side Glass](https://oemsquarebodyparts.com/squarebody-glass-replacement-guide/) - [Squarebody Grille Replacement and Restoration Guide](https://oemsquarebodyparts.com/squarebody-grille-replacement-restoration-guide/) - [Squarebody Interior Restoration: Dash, Seats, and Door Panels](https://oemsquarebodyparts.com/squarebody-interior-restoration-guide/) - [Squarebody Leaf Spring Replacement: Restoring Ride Height and Payload Capacity](https://oemsquarebodyparts.com/squarebody-leaf-spring-replacement-guide/) - [Squarebody Mirror Replacement: Stock, Towing, and Upgrade Options](https://oemsquarebodyparts.com/squarebody-mirror-replacement-upgrade-guide/) - [Squarebody Parts Buyer’s Guide: 1973-1987 Chevy & GMC Truck Parts](https://oemsquarebodyparts.com/squarebody-parts-buyers-guide/) - [Squarebody Restoration Cost Guide: What to Budget for Every Stage](https://oemsquarebodyparts.com/squarebody-restoration-cost-guide/) - [Squarebody Rocker Panel Replacement: Step-by-Step Guide](https://oemsquarebodyparts.com/squarebody-rocker-panel-replacement-guide/) - [Squarebody Rust Repair Panels: Cab Corners, Rockers, and Floor Pans Buyer’s Guide](https://oemsquarebodyparts.com/squarebody-rust-repair-panels-buyers-guide/) - [Squarebody Steering Box Replacement and Rebuild Guide](https://oemsquarebodyparts.com/squarebody-steering-box-replacement-rebuild-guide/) - [Squarebody Suspension Upgrade Guide: What to Replace First](https://oemsquarebodyparts.com/squarebody-suspension-upgrade-guide/) - [Squarebody Tail Light Replacement and Restoration Guide](https://oemsquarebodyparts.com/squarebody-tail-light-replacement-guide/) - [Squarebody vs. OBS: Key Differences Between the 1973-87 and 1988-98 Chevy & GMC Trucks](https://oemsquarebodyparts.com/squarebody-vs-obs-chevy-gmc-truck-differences/) - [Squarebody Weatherstrip Replacement: Complete Door and Window Seal Guide](https://oemsquarebodyparts.com/squarebody-weatherstrip-replacement-guide/) - [Squarebody Wiring and Electrical Problems: Diagnosis and Repair Guide](https://oemsquarebodyparts.com/squarebody-wiring-electrical-problems-guide/) - [Top 5 Rust Spots on a Squarebody Truck (And What to Do About Them)](https://oemsquarebodyparts.com/squarebody-truck-rust-spots-repair-guide/) ## Vehicle Fitment - Years: 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987 (Blazer/Jimmy/Suburban through 1991). - Models: C10, C20, C30, K10, K20, K30, K5 Blazer, Suburban, GMC Sierra, GMC Jimmy. - Generations: 1973-1980 (first facelift era) and 1981-1987 (second facelift era).