Unless you know exactly what you are doing and the product description is extremely clear, you often end up wasting money on ebay.
Known Suzuki afermarket vendors (& some do sell on ebay!) are the
safest way to buy upgrades for your truck! They all live and die on their reputation as a business that deals fairly. Ebay has too many fly-by-night types who "hope" to strike it rich without doing much work in the process.
Those metal inserts are there for a purpose...