I finally got my BB changed yesterday, on the ‘86 High Sierra. I was trying to be careful of that fixed cup, on the old cup & spindle unit, that it wasn’t frozen on or something, but getting into a shop takes an appointment, and I got tired of waiting. 🙄😉
Turns out there was no need to worry, the old one came right off, with not much effort, using a 12” Crescent wrench. 😎
The new BB is a UN-55, which is actually a nicer one, in this day & age, for square taper. The old one definitely had some corrosion issues, lol, but I also still have some rubbing to troubleshoot. It’s just a part-time rub, like old grease wanting changed out. Gotta be either the RD pulleys, pedals, or hubs. 🤔