Heavy-Duty Repair, Body, Fleet & Custom, One Shop

When your semi is down, every hour costs money. 1776 handles heavy-duty diesel diagnostics, brakes, driveline, electrical, and the body work most truck shops won't touch, all under one roof in Sioux Falls.

1776 is built for diesel work. From Cummins and Detroit to PACCAR and Duramax, we diagnose hard problems, fix them right, and get working trucks back on the road.

Codes don't fix trucks, techs do. We chase the actual problem instead of throwing parts at it until something works.

From injector replacement to in-frame overhauls, 1776 handles the big jobs that keep working trucks earning.

Slipping clutch? Shifting like a wagon? Driveline shaking the fillings loose? We figure out what's actually wrong and fix it.

Brakes are not the place to cut corners. We service air systems, foundation brakes, and trailer brakes to DOT standards.

Stay road-legal. We provide honest inspections and clear repair recommendations so your equipment passes the first time. [Add DOT inspection authorization here if applicable]

Passenger-car body shops are not always built for working trucks. 1776 handles commercial truck body repair, panel work, paint, and structural concerns on equipment that has to earn.

Wrecked your hood, cab, or sleeper? We'll work through the photos, the estimate, and the insurance side so you know your options.

Dry vans, flatbeds, reefers, hoppers, and step decks, we repair the parts that break and weld the parts that crack.

From cracked frame rails to custom brackets and complete flatbed builds, our welders do the work that keeps working trucks earning.

Built for fleets of 1–10 trucks: owner-operators, contractors, local delivery, ag operators, and service companies. We help you plan PMs, catch problems early, and reduce downtime.

1776 is not just a repair shop. We build custom trucks, restore classics, and upfit work trucks for the way you actually use them.