A healthy factory sprag will usually make a squealing noise when turning the tailshaft in the forward direction...not sure if the Coan will too.

I got a spare yoke to turn the output shaft and the planet gear inside the shell[front clutch reatainer] looks to be where the trouble is.I think maybe a snap ring came loose or something holding a gear in that shell. I tested it in all but park.

I got a spare yoke to turn the output shaft and the planet gear inside the shell looks to be where the trouble is.I think maybe a snap ring came loose or something holding a gear in that shell. I tested it in all but park.

There is metallic shavings in the pan.You have seen it before I know. I have a fix for it in the works.

Snap ring , probably not , 2 things happen , the splines strip out of the planet or the shaft breaks right there.

Thanks for your insight!The splines stripping is likely with it locking like it did.I wont have it inspected for a while but I will update at the time.