The Milwaukee 14-30-1034 Right Gear Case Kit helps restore reliable power transmission for compatible Milwaukee reciprocating saws. It works by housing and supporting the right-side gear assembly, allowing smooth transfer of motor power to the drive mechanism for consistent cutting performance. Made to replace a worn, cracked, or damaged right gear case, it helps restore proper gear a... https://www.wholetoolbox.com/milwaukee-14-30-1034-right-gear-case-kit/14-30-1034.html