Very difficult fix even though I had done it once before about 15 years ago. Problem for me was getting the transmission down far enough to get clearance to install the belt. Model LA780P from the mid 80s. It started leaking transmission fluid and that worried and hurried me.
I bought a newer washer but went back to this older style because they are repairable. New ones are disposable and I like the old porcelin.
The only two parts that ever break are the belt and the pump, the pump being pretty easy to replace.