904 output shaft play

Lefty71 said

I'd talk to someone at A&A or CRT (Cope) if I were you.

Click to expand...

Thank you, Lefty. It will be couple weeks before it’s put back together. I think I’ll check for that similar play once the tail housing is bolted up. I can leave the pan and valve body off, push the drum toward rear of car. Then see how far drive shaft pushes drum back. I believe the bushing may have had enough wear to need replaced. If the hum persists.. It could have been that inward and outward movement.
But, I don’t think that movement was causing the tiny hum at 70. Sometimes bearings can be deceiving. We spin them by hand and think they’re ok. I’ve seen bearings have zero slop and not make any noise spinning them by hand. But, they still can sometimes need replaced. Mine seems perfectly fine. Maybe it’s being starved of oil a little at that speed. I wanted to replace it regardless. But, I can’t find a new original. Ones available aren’t the original same exact inner diameter and don’t have the snap ring groove. That snap ring plays a huge role in keeping the output shaft from moving too much in and out when it’s installed.
I’d rather have a questionable bearing with that snap ring. Than a new one without it.