CAD-17 Cadillac-inspired DTS twenty ribs with short paired roots — OE 17802480 decorative wheel

OE reference17802480. DTS4075: twenty slender chrome ribs, ten narrow through pair slots alternating ten wider bays. Original top-half crop resolves short shared roots ending before midspan; depth remains photo-estimated, not factory. Empty small bore in source; optional plain ornament supplied separately. Reference18.0x7.5; 5-lug 115.0mm PCD. Includes complete and separate wheel/small plain decorative bore ornament STEP/STL, editable native CadQuery Python, six actual-mesh views and print guid…

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