That depends on which engine. The 3.5 and 4.0L v6 have timing belts. The 2.7, 3.3, 3.8 v6 are chains. The 5.7L v8 is a chain.
2.4L timing belt. 2.7L timing chain.
Chain
A 2005 Chrysler Town and Country has a timing chain.
The 3.8L has a chain. The 4.0L has a belt.
Belt
Chain
2.7L has a chain. 3.5L has a belt 5.7L has a chain.
3.5 has a belt. All others have chains.
The 3.5 has a timing belt. All other engines have timing chains.
The Chrysler 3.3L has a timing chain.
2.7L has a timing chain. 3.5L has a timing belt
It has a timing belt.