2018 GMC Sierra 1500 differential — Non-Interchange search using only GMC Truck-Sierra 1500 (1999 Up) price snapshot
- Low
- $500
- Average
- $750
- High
- $1,000

Year & trim-specific price guide
A used 2018 GMC Sierra 1500 differential (Non-Interchange search using only GMC Truck-Sierra 1500 (1999 Up)) costs $500 to $1,000, with a median asking price of $1,000. Based on 2 priced salvage yard listings across the US, updated Sep 3, 2026. Prices exclude shipping, core charges, and installation.
Condition comparison
| Grade | Price range | Relative range | Listings |
|---|---|---|---|
| Grade AClean / low wear | $500–$500 | 1 | |
| Grade BStandard used | $1,000–$1,000 | 1 | |
| Grade CVisible wear | Updating | — | |
| Grade XUngraded | Updating | — |
Median by grade
Median asking price by seller-reported condition grade · $500–$1,000 overall range
Trim-specific context
This pricing covers the Non-Interchange search using only GMC Truck-Sierra 1500 (1999 Up) variant of the 2018 GMC Sierra 1500 differential, based on 2 priced listings. Its $1,000 median is 0% above the 2018 GMC Sierra 1500 differential overall median of $1,000.
There is 1 other differential variant available for the 2018 GMC Sierra 1500.
Pricing is not a fitment guarantee. Match the VIN, part number, engine or drivetrain, and seller-listed variant before ordering.
Same year, other trims
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Common questions
Based on 2 priced salvage-yard listings, a used 2018 GMC Sierra 1500 differential in the Non-Interchange search using only GMC Truck-Sierra 1500 (1999 Up) variant lists between $500 and $1,000, with a median asking price of $1,000.
In our current dataset, the Non-Interchange search using only GMC Truck-Sierra 1500 (1999 Up) variant appears only for the 2018 model year.