First released in 1977, the Johnny Ray Patented Transducer Mounting Bracket gets a few upgrades. After many requests from the market within, all Johnny Ray Transducer Mounting Brackets are now assembled using Stainless Steel Mounting Hardware. Every unit shipped from June 1, 2007 will have this hardware pre-installed to give your rig long lived and trouble-free lifespan. Look for the Yellow Sticker on the package indicating the change at your favorite Dealer or Retailer Today !!