The jury seems to say it is NON-interference. Good question - no easy answers out there for such an important issue.
The below forum hits on the topic and a good place to try is www.gates.com
http://www.automotiveforums.com/vbulletin/archive/index.php/t-525072.html
No.
The 2002 Dodge Grand-Caravan has a V6 engine.
The 2004 Dodge Grand-Caravan has a V6 engine.
The 2012 Dodge Grand-Caravan has a V6 engine.
The 2005 Dodge Grand-Caravan has a V6 engine.
The 2007 Dodge Grand-Caravan has a V6 engine.
The 2014 Dodge Grand-Caravan has a V6 engine.
The 2009 Dodge Grand-Caravan has a V6 engine.
The 2013 Dodge Grand-Caravan has a V6 engine.
The 2006 Dodge Grand-Caravan has a V6 engine.
The 2008 Dodge Grand-Caravan has a V6 engine.
The 2011 Dodge Grand-Caravan has a V6 engine.