8. Disassembly continues with the removal of the outer-tie-rod ends. After pulling the cotter key, the 3⁄4-inch castle nut is loosened but not removed. A dead-blow sledgehammer is used to pound the top of the nut and underside of the tie rod until it unseats from the spindle. Although the tie-rods were both in good shape, replacement is necessary after this disassembly method. We sourced heavy-duty replacements from PTFB.