Does a 2000 Ford Explorer have a timing belt or chain?

On a 2000 Ford Explorer :

The 4.0 litre EFI engine ( the 8th " character " of the VIN is an " X' " ) is an

Over Head Valve / pushrod design engine and has ( 1 timing CHAIN )

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The 4.0 litre Single Over Head Cam , V6 engine has ( 3 timing CHAINS )

( the 8th " character " of the VIN is an " E " )

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The 5.0 litre V8 engine has ( 1 timing CHAIN )