VICTORIA, TEXAS -- I have an eighteen month old 2006 Dodge 3500. The a/c quit blowing out the appropriate vent and Dodge told me I have to have the "blend" door replaced. It has come apart. The bill is going to be over $500.00 to change out the $30.00 door. This appears to be a "known" problem and Dodge informed me they are not going to do anything about it.