Yes, you have an extended pin box. But, Dodge has the shortest cab-to-axle distance of the big 3, about 37 inches vs 41-42 for Ford and GM. If your Montana is an older unit that doesn't have a front cap with notched corners, then you will probably be limited to a max angle around 50 degrees. If you are comfortable with that limitation and pay close attention, then all is OK. If the Montana has notched corners, then max angle should be around 80 degrees.
For 22 yrs, three different GM short bed trucks limited my max angle to about 63 degrees and I never had a problem, new fiver has notched front cap.
If you feel the need for more maneuverability, there are plenty of manual sliding hitches, several auto sliding hitches and the Reese Revolution (aka Sidewinder) pin box.