The MTD 753-08544 Trimmer Lower Boom Assembly helps provide reliable support and power transfer for compatible string trimmers. It works by housing and protecting the lower drive shaft while connecting the gearbox to the upper shaft assembly, supporting smooth cutting performance and dependable operation. Made to replace a bent, cracked, or damaged lower boom assembly, it helps restor... https://www.wholetoolbox.com/mtd-753-08544-trimmer-lower-boom-assembly/753-08544.html