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U.S. Patent No. 12,236,477 — Patented Automotive Data Standardization Technology
OAV

2008 GMC Sierra 2500HD SLE2

2008 GMC Sierra 2500HDView this vehicle at bocker gmc inc →

Vehicle Details

VIN1GTHK29628E129307
TrimSLE2
Exterior ColorRed
Drivetrain4WD
Engine6.6L V8
TransmissionAutomatic
Fuel TypeDiesel
Inventory Typeused
Days on Lot9

SLE2

Unscored
$21,313153,670 mi

Freeport, IL 61032

Is this 2008 GMC Sierra 2500HD SLE2 a good deal?

OAV verdict: Unscored

Why: Listed at $21,313. OAV found too few sufficiently similar vehicles nearby to support a confident price verdict, so it withholds one rather than guessing. Listed 9 days.

Market price position

OAV found too few sufficiently similar vehicles nearby to support a confident price verdict, so it withholds one rather than guessing.

Bocker Gmc Inc

Freeport, IL

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OAV routes your inquiry; pricing, taxes, fees, and availability come from the dealer.

About This 2008 GMC Sierra 2500HD

Listing updated: Sep 14, 2026

Listed by a franchise dealer in Freeport, IL · On lot for 9 days · VIN verifiable at NHTSA

This used 2008 GMC Sierra 2500HD SLE2 is listed at $21,313 by bocker gmc inc in Freeport, IL 61032. It has 153,670 miles on the odometer (dealer-reported, not independently verified by OAV). The exterior color is Red. It features a 4WD drivetrain with a 6.6L V8 engine and Automatic transmission.

OAV's independent, evidence-backed Price-to-Market analysis rates this vehicle as Unscored. OAV found too few sufficiently similar vehicles nearby to support a confident price verdict, so it withholds one rather than guessing.

This vehicle has been on the lot for 9 days.

Analysis powered by OAV's patented inventory standardization technology (U.S. Patent No. 12,236,477). Verdict methodology ptm-verdict-v1 · snapshot Sep 14, 2026. The patented comparable band is the input; ptm-verdict-v1 is the versioned OAV rule set that turns it into this verdict.

Market context

This listing is part of OAV's broader Freeport, IL trucks market analysis. OAV compares vehicles by local and regional price-to-market ranges and comparable count; days-on-lot and demand signals are shown separately, not as verdict inputs.

How this deal is rated

OAV compares this 2008 GMC Sierra 2500HD against similar vehicles currently available for sale — same make, model, and year range, using trim where the data supports it. OAV does not adjust comparable prices for mileage; on used vehicles it withholds a verdict when mileage would distort the comparison — very high or unreliable mileage, or a lower price better explained by higher-than-typical mileage than by a genuine market discount — rather than overstate a deal. Based on where this listing falls in that comparable set, it is rated:

  • Great Deal — priced below the comparable-range floor by a meaningful margin (OAV's minimum-gap rule); a listing below the floor by less than that margin is Fair Price.
  • Fair Price — priced within the expected range for comparable vehicles.
  • Overpriced — priced above the typical range for comparable vehicles.

Listings show OAV's PTM-derived deal quality and live market context. OAV-claimed dealers manage their listing profile and route buyer inquiries directly. Paid OAV partners can surface additional verification signals, but commercial participation never changes a listing's Price-to-Market verdict, eligibility, ranking, or confidence.

How this listing is verified

This vehicle listing was aggregated from a franchise dealer in Freeport, IL, one of 57,000+ U.S. dealerships in OAV's nationwide inventory network.The VIN 1GTHK29628E129307 can be independently verified via the U.S. Department of Transportation's NHTSA VIN decoder, and safety recalls at NHTSA's recall database.

Vehicle attributes (year, make, model, trim, mileage, location) are standardized using OAV's patented methodology (U.S. Patent No. 12,236,477), which normalizes naming conventions and deduplicates cross-listed inventory across the dealership network. Listing data is processed daily; Price-to-Market analysis uses comparable vehicles.

2008 GMC Sierra 2500HD Market in IL

IL Market Listings

12

Average Price

Price Range

Avg Days on Lot

291

Based on all 12 2006-2010 GMC Sierra 2500HD listings in the IL market. Because OAV has not assigned a reliable price verdict to this listing, it does not state how it compares to this broader average. Similar vehicles spend an average of 291 days on dealer lots in this market.

Similar GMC Sierra 2500HD Listings in IL

2 similar listings shown (closest matches within ±2 model years) and ±30,000 miles (subject trim: SLE2 — compare trims below)

This is a broad, statewide same-model set (any trim, mileage, or title) — not the qualified comparable cohort behind the verdict above; lower prices here typically reflect a different trim, higher mileage, or a branded title.