OE "should" be a direct bolt-on as long as your x-member is drilled and threaded for the front of skid plate attachment. The rear of plate has two hanger bars that bolt up to where the rear tank hanger straps are attached. As for MOR, the skid plate doesn't cover the tank, it replaces the three bars on the PAX side, which you likely don't have either. I had bought this set up, but the MOR rear x-member was not a direct replacement. Not sure if it was because I have a Tradesman with PW package. Issue was the bar did not fit like the OE bar into the recess on bottom of tank, i.e. is was about 4-5 inches forward the recess on tank. Had I left as is, grit could have gotten between the two and eventfully put a hole in tank, or so I surmised. Had other issues as well with fit and form.