1982 GMC Sierra C3500 Dually | J-Code 6.2L Diesel

The Ultimate Squarebody Workhorse – Professionally Refreshed & Road-Ready

Own a piece of GM truck history. This isn't just a survivor; it’s a meticulously maintained 1-ton "Camper Special" that balances classic Squarebody aesthetics with modern reliability. With over $20,000 in recent mechanical receipts, this truck is turn-key and built to haul but ready to cruise.

The Specs

Engine: J-Code 6.2L V8 Detroit Diesel (Recently replaced with a low-mile unit—only 8k miles on the new motor).

Transmission: Bulletproof TH400 3-Speed Automatic.

Rear End: Dana 70 Full-Floater (Built for maximum payload/towing).

Chassis: VIN-verified “H” Rating (10,000 GVWR).

Wheels: Custom 22” Dually Rims with brand-new tires and fresh alignment.

Mechanical Restoration & Upgrades

Powertrain & Fuel System:

New Injector Pump & Rebuilt Injectors.

Upgraded Fuel System, New Fuel Pump, and Solenoid.

New Water Pump, Hoses, Radiator, and Thermostat.

New Glow Plugs, Controller, and Dual Batteries.

Rear Main Seal and Oil Pickup Tube replaced.

Drivetrain & Suspension:

Full Transmission Service & New Pan.

Dana 70 Differential Service.

New Steering Gear Box & Alignment.

New Shocks, Sway Bar Bushings, and Engine Mounts.

Complete Brake Rebuild: Including rear cylinders and bearings.

Exterior & Comfort:

Smoked lens lighting upgrade (all bulbs replaced).

New Windshield and Speedometer Cable.

Aggressive modern stance with 22" custom dually wheels.

Clean Title in Hand.

Binder of Receipts: Over $20K in documented work.

Performance: Starts easy, runs cool, and shifts smooth.

Additional Work Needed

Interior is not completely redone but mostly

AC truck but compressor needs to be rebuilt

Cruise Control is not working

Truck has patina and still has original Almond Paint