I threw a rod in my 3.7l 2007 durango and have been unsuccessful in locating a replacement. I believe this has a 3 speed transmission. I need to know if anyone knows whether i can put in a 4.7 without changing transmissions or if anyone knows of one for a decent price in or near texarkana texas. Also any tips for replacement are helpful as i am kind of inexperienced although i do have some help coming from my father who is a mechanic. Any help is greatly appreciated.