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Rare 1999 GMC K3500 Crew Cab 4x4 (GMT 400 OBS) - $32,000 (Las Vegas,Nevada)
1999
gmc sierra 3500
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A true unicorn for OBS enthusiasts. This exceptionally clean 1999 GMC K3500 4x4 Crew Cab Long Bed is one of the last built on the legendary GMT400 platform — the final year of the iconic Old Body Style (OBS). If you’ve been searching for the ultimate heavy-duty classic, this is your truck a turn key ready to go needs nothing!
🔧 Key Specs & History
• Engine: 7.4L Vortec 454 (L29) V8 Lots of power !
• Transmission: Heavy-Duty 4-speed automatic w/ overdrive
• Mileage: 183,000 (purchased at 179,350 on 11/03/2021)
• Ownership: Originally custom ordered new for $40,000 by a Vietnam veteran U.S. Marine — passed down in the family and professionally upgraded
• Veteran Owned: I’m a proud U.S. Army veteran and intended to turn this into a show-quality build in the future but decided to sell for down payment on house..
🚗 Condition
This truck has been meticulously cared for and tastefully upgraded, with over $18,000 invested in premium parts, labor and restoration after purchase price, and preventative maintenance. It runs, drives, and shows better than many newer vehicles — and turns heads everywhere it goes.
🔧 Upgrades and Modifications
Interior
• Custom Katzkin premium leather (California-made) interior better than new..
• OC Auto USA premium carpet w/ mass backing
• WeatherTech floor liners (front & rear)
• Viper 5706 alarm with remote start
• Acumen R10 12” 4K mirror dash cam system ($1,600 installed)
• Redhead upgraded steering gearbox
Wheels and Tires
• Rare Weld Cheyenne Forged USA Made 20 plus year old wheels (18x8.5”) – in mint condition with new caps and took me two years to find them!
• BF Goodrich KO3 All-Terrain LT305/65R18 (installed at 180,960 miles)
Suspension & Steering
• Rancho 9000XL adjustable shocks
• Kryptonite: SS center link, tie rods, sway bar end links, Death Grip pitman arm
• Borgeson steering shaft
• Bilstein front stabilizer
• Spicer U-joints, balanced driveshaft, Melling high volume oil pump.
• Redhead steering gearbox out of Washington state..
Exterior
• Bulletproof spray-in bedliner (no 5th wheel use)
• Heavy-duty rubber bed mat
• Dual Flowmaster exhaust – deep but not obnoxious
• New OEM-style inner fender liners…
Engine and Drivetrain
• New: mass airflow sensor, battery, water pump, radiator, hoses and runs cool never over heats ! AC compressor and full AC system, idler arm, outer tie rods, rear bearings and seals
•K/N air filter
• B n M aluminum differential and transmission pans deep (improved cooling/capacity)
• New serpentine belt, tensioner, pulleys
• All high-quality fluids used (transmission, transfer case, differential)
Other
• Recent just done new Napa hydraulic brake booster, Ac delco front are rear brake pads, wheel cylinders, new premium brand upper control arms, steering arm bracket with new alignment done and front end is amazing now! All the glass in truck now with out a scratch or pit in it is like new..Flush out all old fluids and added new high quality..
• Comes with $600+ worth of new spare parts
• Clean title – Carfax available
• More photos/videos available upon request
💰 Asking Price: $32,000 OBO
No rust, no issues, no excuses original paint and body and super straight..This is one of the cleanest OBS K3500s you’ll ever find — especially in this configuration and condition. Perfect for a collector, a high-end daily, or a future show build .These are only going up in value, and this one is already a standout. Please come see ,drive and check out for yourself in person no disappointment..Thanks Richard