Ry10532 Chainsaw worm gear. Suggest ordering Husqvarna worm gear for their 340-345-350. It's on ebay. It needs to be modified slightly. 1.Shave off the four little tits with a razor blade. 2.Use a drill bit to enlarge the openings for the gear that turns the worm. All other specs are perfect. Did mine, and the oil is flowing
paul kinsley, July 2019