I went to local auto parts store, when installing my 7,3, to save time on shipping, Of course they did not have Motorcraft, so purchased dorman. Big mistake, First broke the little clip in the end, back to the store, they gave me new replaceable clips, returned home, this set just would not plug in, also broke the clip again. Finally called up Clay and ordered Motorcraft set, for less money with shipping than the junk dorman at the autoparts store. So...save time and money, order from Riffraff, and do it right the first time.