Easiest 727/904 rebuild thread...
This is ridiculous. You're telling beginners to take apart things that even seasoned rebuilders don't disassemble. Remove the shaft from the reverse servo piston? OMG why? Soaking clutches OVERNIGHT? That 727 reverse servo spring retainer looks like you installed backwards. The spring will pop off center and **** the piston sideways; losing reverse. Go back to school.