stopped to cool off today and saw oil on the frame and deck.
Took off the tunnel cover and there was a small piece of plastic wrapped around the shaft between the coupler and the front of the hydro. it was in there pretty tight but I got it all out with needle nose pliers and started the engine, it drips about once every 5 seconds. so it looks like a new hydro shaft seal is needed. my flex joints look to be in good shape so I will reuse them, it has 2 at each end of drive shaft.
when I unbolt the seal housing from the hydro is there anything I need to watch out for. like needle bearings and such. I have never had to work on the hydro in any of my tractors.
I am also tryin to find a service manual for the 1811.