Hi mate, you don't need a 2wd mount, you need a special one from ford to fit a T5 into a MT75 chassis Order finis code 6177696 , it is then a direct fitment . You can leave the 4x4 beam in there as well, it will work fine on a 7" 4x4 rear diff. If you want the extra strength, you can just get the 2wd diff and shafts, and take 1/2" off the casing, and it will fit your beam without having to change anything else.