727 Time to rebuild

Dug a little more into the transmission to see if things were looking good. I noticed that the front planetary appears a little ruffed up and so is the piston. what clearance problem would cause this problem? I have one small brass looking washer that separates the two. It measures .074. Doesn’t appear to bad but you can tell that they met each other at some point. Maybe trash got between the two and made it’s mark, who knows? 72646602-595A-418F-A89B-8FDC52B81ACB.jpegE0C8EA94-81F1-4E98-BEA8-26767F48875C.jpeg 8A1D4D0D-41D3-4BA7-8D80-292BFCFFB9E7.jpegF960C790-5EBB-4FD6-8896-C90C7F9BEB37.jpeg