Will the 73-74 buckets fit in a 69-72 blazer? I have found a really clean set but they are for a 73. The seats look almost exactly the same. Only the covers at the top and the mounts are a little different looking. I have mounts for a 71. Will these mounts bolt to these frames. I would take these apart and buy the proper foams and covers. I have heard the frames are the same and you just switch brackets. Anyone?