2019 Tracker Grizzly 1648 Jon The all-welded TRACKER GRIZZLY 1648 Jon is a tough and highly versatile aluminum jon boat ready to be outfitted for fishing, hunting or general-purpose boating. The unitized stringer, transom and Mod V hull give you a rock-solid boat with a smoother, drier ride. The 1648 boasts a robust .190 aluminum floor for a quiet ride and sturdy feel underfoot, plus a big fron...