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A 2022 GMC 2500 used pickup truck

Do These Pickup Trucks Prove GMT800 Chevy Silverados and GMCs are Increasing in Value?

General Motors built the ā€œGMT800ā€ generation of its Chevrolet and GMC pickup trucks from 1999 through the 2006 model year. These trucks are not yet as desirable as the earlier ā€œsquare bodyā€ generations. But at 20+ years old, they are sitting at a depreciation low point. I have been wondering when GMT800 trucks would start …

General Motors built the ā€œGMT800ā€ generation of its Chevrolet and GMC pickup trucks from 1999 through the 2006 model year. These trucks are not yet as desirable as the earlier ā€œsquare bodyā€ generations. But at 20+ years old, they are sitting at a depreciation low point. I have been wondering when GMT800 trucks would start increasing in value and move toward becoming collectorsā€™ items. Then three trucks commanding top-dollar on Cars & Bids in early 2023 made me wonder if GMT800-era trucks are finally becoming collectible.

2000 Chevrolet C3500 LS ā€“ $18,750

A red square body Chevrolet Silverado heavy-duty GMT800 pickup truck parked in a field, with a sunset visible in the background.
2000 Chevrolet C3500 LS | Cars & Bids

In 2000, Chevrolet had yet to update its heavy-duty pickup styling. So this 2000 Chevrolet C3500 is one of the most vintage-looking trucks on this list. It has just 49,500 miles. It features the turbodiesel V8, a 5-speed manual, and a dual rear axle.

Some pros for this truck include a CB radio, an Accu-Pro brake controller, and an attractive body-colored truck cap. It also has a locking rear differential, halogen headlamps, 16-inch wheels, clearance lights, and a hitch receiver. The diesel pump, low-pressure fuel pump, timing cover gasket, and intake gasket were all replaced this year.

This truck sold in late February 2023 on Cars & Bids for $18,750. I know thatā€™s a fair amount of money. But what the buyer got was a low-mileage GMT800 truck with beautiful vintage looks that is a high-value tow rigā€“even by modern standards.

2002 GMC Sierra 2500HD SLE ā€“ $15,959

A beige/silver 2002 GMC Sierra GMT800 pickup truck with an extended cab parked in a field for an auction photo.
2002 GMC Sierra 2500HD SLE | Cars & Bids

This 2002 GMC Sierra heavy-duty has the 8.1-liter gasoline V8. This may be the main reason itā€™s not worth as much as the 2000 truck. It is also an automatic, RWD truck with 79,400 miles.

This truck was modified with a K&N air filter, a 180-degree thermostat, wider tires, and spray-in bed liner. This is not a true four-door but does have an extended cab.

Despite not being as desirable as the 2000 truck, the 2002 GMC was still worth more than $15k on Cars & Bids in November 2022. This sale definitely made me wonder if GMT800 values are coming up.

2003 Chevrolet Silverado 2500HD LT 4Ɨ4 ā€“ $22,750

The value of this 2003 Chevrolet Silverado pickup truck at auction proved especially high for a used GMT800 pickup.
2003 Chevrolet Silverado 2500HD LT | Cars & Bids

The highest dollar GMT800 on this list is a 2003 heavy-duty Silverado. It has the 6.6-liter turbodiesel V8 and a 5-speed automatic. It is a relatively high-mileage truck, at 113,800. In addition, itā€™s been tuned with a Pacific Performance Engineering Xcelerator kit.

Some other modifications to this Silverado include an MBRP exhaust system, Flo nā€™ Go Duramax 14-gallon Gas Caddy. Draw-Tite brake controller, and LINE-X spary-in bedliner. Honestly, this is a great truck, but its modifications and mileage would make me skittish of how hard itā€™s been used. Yet this Silverado sold in early March 2023 on Cars & Bids for $22,750.

At the time of this writing, Car Gurus records no price change in GMT 800 resale values, except a slight increase (since February) in the value of the 1999 model year Silverado.

Obviously, Cars & Bids tends to attract slightly more desirable, and even collectible, vehicles than other auction sites. For this reason, it can be a helpful barometer. So do several heavy-duty Chevrolet and GMC trucks going for a bit above market signal a shift? Does this mean they are becoming sought-after? Weā€™ll have to wait and see.

But there is one thing we know for sure: GMT800 trucks may be considered low-dollar work trucks by many General Motors fans, but time marches on. As the years pass by, so does the cutoff for whatā€™s commonly considered a classic truck. Someday soon, GMT800 GMC and Chevy pickups will be considered collectible and high-value.

Next, read about common check engine light causes in an old Silverado or watch a review of a GMT800 Silverado in the video below:

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