yes i searched but im also lazy and havent posted in a loooong time. just picked up a couple of used trimmers( stihl fs76, husky 323L) and wanted to know if the shindaiwa speed heads would work on these. ive been a shindaiwa man for years but i couldnt pass up the deal on these pair and they are both near mint condition. the stihl head is absolute JUNK! my guys couldnt even get the "suffix spiral" type line to fit through it! the husky is OK but once you use those shini speedheads, you dont want to go back.