I have a pair of the struts that go inside the box to raise the original top with aid of springs on the inside. If you own an original steel Mullins trailer or are trying to restore one these parts are almost impossible to find. I have attached a photo of what I have and a photo of the original showing where they go $175 FIRM plus the ride I prefer pickup as the rods are somewhat heavy and could be pricey to ship. Happy Thanksgiving to all Tom