Weed eaters are a “disposable” tool. Can’t justify buying an expensive “reputable” name brand trimmer and servicing it for a 2-3 year problem. Bought a cheap Ryobi over 15 years ago, about $120 at a big box store...motor and shaft units completely separate. When the motor craps out every 3-4 years, go buy a new one for $60 and keep the lower unit. Ain’t worth my time or effort for $60 every few years to fix a problem motor. Now, my chainsaw is a several year old Stihl and still runs well.