I need a new gas tank skid and from what I can tell looking at pictures, the 5th gen looks identical to the 4th gen.
Just recently someone posted info about this, he said the skids are exactly the same except one of the "legs" has the be modified because on the 5th Gen it's longer, so he had to cut it and reweld it.
I don't remember which year 5th Gen he was referring too, he decided to check it out because a new 5th Gen skid is around half the price of a 4th Gen for some reason.