[KOG]

Jeep is longitudinal mount, Caravan is transverse, look for motor mount problems.
Best to hunt one which is a known swap, computer and harness issues can be a deal killer on late model swaps.

 

[KOG]

"Thank you , the new motor is going to be in the 2016 Jeep Grand Cherokee
the caravan don't have this new options"
Pardon my confusion.

 

[KOG]

Ah, OK. It's nearly impossible to find out what differences exist now, but be assured that they do.

This is the first time I've heard of a bottom end problem with a 3.6.