9K miles does seem a little too soon, but my wife can do it in 6k. (LOL)
I will assume the rear brakes are drum type.
Anyway, one of the most common reasons for premature front brake wear is rear brake adjustment. In theory, the front brakes should do 60% of the stopping and the rear 40%. However, because most self adjusters never seem to work on the rears, the front do much more of the job causing premature wear.
Keep in mind, it's not uncommon for a Chrysler T/C to average around 12k between brake replacement; however, it sounds like you are very careful with yours and should be more.
My recommendation is to make sure the rear brakes are properly adjusted. It's easy to check. Jack the rear of the van and spin the rear tires. The wheel should have a slight drag on it from the brakes. If it spins freely, the brakes need adjusted.
Let me know if this helps, or if you have any other questions.
Monday, October 29th, 2018 AT 6:12 PM