[LMH]

Every 8.8" IRS cover that I've seen that came from either a T-Bird or Mustang, looked the same. Not saying there aren't different ones, just that I haven't seen them. Mustang/T-Bird differentials have symetrical mounts at the nose and one in the rear.
Explorer's have a different style mounting system and the differentials look different though I beleive they use 8.8" internals.
Larry