FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM
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Car repair manuals for everyone.
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Chevy Truck
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2000
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Express 1/2 Ton Van V8-305 5.0L VIN M SFI
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Repair and Diagnosis
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Restraints and Safety Systems
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Air Bag Systems
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Description and Operation
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Definitions
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Datum Line
Datum Line
A base line parallel to the plane of the vehicle underbody or the frame. All vertical measurements originate from this base line.