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Ford Rear End Identification: The Cover Tells FirstSmall Block Chevy Casting Numbers: Read the RestPontiac Engine Codes: Read the Whole BlockCharger Daytona avg $545kHemi 'Cuda avg $412kBoss 429 avg $370kFord Rear End Identification: The Cover Tells FirstSmall Block Chevy Casting Numbers: Read the RestPontiac Engine Codes: Read the Whole BlockCharger Daytona avg $545kHemi 'Cuda avg $412kBoss 429 avg $370k
Ford Rear End Identification: The Cover Tells First
COVER · FORD · FORD REAR END IDENTIFICATION: THE COVER TELLS
History · Ford

Ford Rear End Identification: The Cover Tells First

Start with the housing, not the door code, then use the tag and the hardware to separate Ford's five rear axle families without buying the wrong gears.

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A dark green 1970 Chevrolet Chevelle SS parked on a quiet residential street
Market Analysis

Why the Barn-Find Era Is Finally Ending

For thirty years the dream was the same: pull the tarp, find the GNX, retire. That math no longer works. And the collectors who understand why are quietly buying something else entirely. We followed the money through three auctions and a dozen private sales.

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Block WatchMarket Values
Charger Daytona'69, market average$545k
Hemi 'Cuda'70-'71, market average$412k
Boss 429'69-'70, market average$370k
Shelby GT350'65-'66, market average$339k
Buick GNX'87, market average$184k
GTO Judge'69-'71, market average$125k
Average sale values · Classic.com · August 2026

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Answered by the Editors

Usually, but not always. For blue-chip cars, matching numbers can double value. For a driver-grade car you intend to modify, it matters far less than condition and how it runs.

If the car is rare and correct, originality holds value best. If it is a common model or already modified, a tasteful restomod is often the smarter, more usable path.

Later "malaise era" cars and four-door or six-cylinder variants of iconic nameplates are the value entry points. So are unloved bodies that share drivetrains with the famous ones.

An LS or Coyote swap gives modern reliability and power for the money. A period engine keeps the character and the value. Match the choice to whether you are driving it or showing it.

Check floors, trunk drops, lower quarters, and cowl. Bring a magnet and a flashlight. Fresh undercoating and mismatched panel gaps are red flags worth walking away from.

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