maybe a keeper was left off the pinion nut? the clutch sounded like misadjustment to me, like moving too far maybe and rubbing on the pressure plate case, or maybe the clutch fork misaligned
"When we tug a single thing in nature, we find it attached to the rest of the world" ~ John Muir "When we tug a single thing on an old truck, we find it falls off" ~ me Some TF series details & TF heater pics