Check to make surethe driveplate is intact. If the drive plate has failed it will not turn the transmission.
Originally Posted by parrish1
On the lake while going about 20 mph with no load the tranny lost all drive.....no forward and no reverse. No noise was noticed, engine just started to rev up as boat slowed down. No movement at all from drive shaft in forward or reverse, all fluid appears clean and normal level, prop is untouched, shaft is fine and turns easily and smoothly. We had to be towed in and I am now wondering if I could be overlooking the obvious. So far my only conclusions are not very pleasing to think about. ONLY 278 total hours on boat. Any suggestions would be greatly appreciated.