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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 N/KOm48kqIpS9C3wzZuzdfQpNor2FBWJ83Y7clOV0iHmiGo4Awhm8BmIuBw8N0LV
 H8TcKCWuoEunI6r15nF0Yw==

<SEC-DOCUMENT>0001260455-03-000001.txt : 20030819
<SEC-HEADER>0001260455-03-000001.hdr.sgml : 20030819
<ACCEPTANCE-DATETIME>20030819121118
ACCESSION NUMBER:		0001260455-03-000001
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20030616
FILED AS OF DATE:		20030819

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			SWIFT BRUCE R
		CENTRAL INDEX KEY:			0001260455

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-12068
		FILM NUMBER:		03854856

	MAIL ADDRESS:	
		STREET 1:		47603 HALYARD DRIVE
		CITY:			PLYMOUTH
		STATE:			MI
		ZIP:			48170

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			METALDYNE CORP
		CENTRAL INDEX KEY:			0000745448
		STANDARD INDUSTRIAL CLASSIFICATION:	MOTOR VEHICLE PARTS & ACCESSORIES [3714]
		IRS NUMBER:				382513957
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		47659 HALYARD DRIVE
		CITY:			PLYMOUTH
		STATE:			MI
		ZIP:			48170
		BUSINESS PHONE:		734-207-6200

	MAIL ADDRESS:	
		STREET 1:		47659 HALYARD DRIVE
		CITY:			PLYMOUTH
		STATE:			MI
		ZIP:			48170

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MASCOTECH INC
		DATE OF NAME CHANGE:	19930629

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MASCO INDUSTRIES INC
		DATE OF NAME CHANGE:	19930629
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>

<ownershipDocument>

    <schemaVersion>X0201</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2003-06-16</periodOfReport>


    <noSecuritiesOwned>1</noSecuritiesOwned>

    <issuer>
        <issuerCik>0000745448</issuerCik>
        <issuerName>METALDYNE CORP</issuerName>
        <issuerTradingSymbol>NA</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001260455</rptOwnerCik>
            <rptOwnerName>SWIFT BRUCE R</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>47603 HALYARD DRIVE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>PLYMOUTH</rptOwnerCity>
            <rptOwnerState>MI</rptOwnerState>
            <rptOwnerZipCode>48170</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>President, Driveline Group</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>



    <ownerSignature>
        <signatureName>Bruce R. Swift</signatureName>
        <signatureDate>2003-08-11</signatureDate>
    </ownerSignature>

</ownershipDocument>

</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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