Three problems related to structure have been reported for the 1998 Dodge Grand Caravan. The most recently reported issues are listed below.
The strut tower is defective and fails causing loss of control and possible injury this happens on all new (1995 and newer) body style minivans made by Chrysler/Dodge and driven in climate where salt is used on the roads in the winter. The strut tower requires patches welded to reinforce the corroded area.
Shock absorber tower on drivers side of vehicle is seriously deteriorating. Rust is penetrating inner and outer portions of tower causing serious safety concerns about stability and integrity of vehicle suspension.
The top of the strut tower, under the hood, is rusting. I haven't approached Chrysler, but will try. I have seen this problem on two minivans and am wondering if Chrysler is doing anything about itl.