# 1776 Companies

> American-owned group of automotive shops in Chancellor, South Dakota. Custom truck fabrication, diesel performance and repair, big rig service, used auto sales, and full-service repair - all under one roof. Formerly Denning Companies.

## Pages

- [Home](/): Overview of all five 1776 shops, contact details, and what we do.
- [About](/about): Company story, founding in 2017 by Ward Denning, location, and the crew.
- [Projects](/projects): Photo gallery of trucks, diesels, big rigs, and daily drivers built and serviced by the 1776 crew.
- [Contact](/contact): Address, phone, hours, and free-estimate form.
- [Careers](/careers): Open roles for CDL drivers, diesel mechanics, and office staff.
- [Locations](/locations): Where to find us in Chancellor, SD.

## Shops

- [All Shops Hub](/shops): Brand hub page linking to all five 1776 shops.
- [1776 Kustom Truck Fab](/kustom-truck-fab): Custom truck builds, lifts, fabrication, paint and body.
- [1776 Heavy Duty Diesel & Ag](/heavy-duty-diesel): Cummins, Powerstroke, and Duramax diesel service, tuning, and rebuilds.
- [1776 Big Rig](/big-rig): Class 8 semi-truck service, DOT inspections, fleet accounts, and 24/7 roadside.
- [1776 RMI Sales](/rmi-sales): One-of-a-kind customized inventory - trucks, Jeeps, LS swaps, and ag equipment. Cash or own funding only.
- [1776 Kustoms & Service](/kustoms-service): Full-service shop for cars, trucks, and SUVs - gas or diesel.

## Guides

- [Guides Index](/guides): All 1776 reference guides in one place.
- [Bolt Pattern Fitment Guide](/guides/bolt-pattern): How to measure truck bolt patterns plus a reference table for common Ford, Chevy/GMC, Ram, Jeep, and Toyota trucks.
- [Truck Tire Size Guide](/guides/tire-size): How to read tire sidewall codes and pick the right diameter for each lift height.
- [Lift Kit Sizing Guide](/guides/lift-kit-sizing): Leveling vs body vs suspension vs long-travel lifts, with tire and gear recommendations.
- [Diesel Tuning Basics](/guides/diesel-tuning-basics): What an ECM tune actually changes on Cummins, Powerstroke, and Duramax - including stages, emissions, and warranty notes.
- [DOT Annual Inspection Checklist](/guides/dot-inspection-checklist): Full FMCSA 49 CFR 396 Annex G inspection checklist for Class 8 trucks and trailers.

## Optional

- [Shop](/shop): 1776 branded merchandise and gear.
- [Merch](/merch): Apparel and accessories.