I am looking for a 2" - 3" turnbuckle for converting my non-adj. wastegate to adjustable. I have looked at Home Depot, Lowe's, and Tractor Supply Co. All have the same hollow soft aluminum turnbuckles. I am needing something made of steel or if aluminum has some solid material inside for strength. After searching the net I am going to check a local boat shop for some stainless steel rigging turnbuckles. Does anyone know where else to find these turnbuckles, either at a store or online?