I saw a post in 2017 on a similar problem with a l4400. I pulled the driveshaft as recommended, I didn't notice a sleeve or oring. I did notice the "propeller" shaft would slide in towards the transmission several inches it stops oil, but went pulled all the way forward it would rain oil. Is that shaft supposed to have that much travel? Also not sure if my machine has the sleeve setup like as described in the l4400 thread. I pulled up the parts list on kubota not real sure if its there or not. Anyway help is greatly appreciated!!!
"eserv" member commented in that that
" The most common reason for that seal to leak is the wear sleeve that is supposed to be inside the seal has moved forward. this shouldn't apply to a L4400 because it should have a sleeve on the shaft between that wear sleeve and the rear coupling. But yours might not have a spacer sleeve! Remove the drive shaft under the oil pan and observe if there is an oring and then a thin tube (spacer sleeve) in there. If there isn't get one and install it, if there is one there changing that seal is a BIG job unless you have the special tools! "
"
"eserv" member commented in that that
" The most common reason for that seal to leak is the wear sleeve that is supposed to be inside the seal has moved forward. this shouldn't apply to a L4400 because it should have a sleeve on the shaft between that wear sleeve and the rear coupling. But yours might not have a spacer sleeve! Remove the drive shaft under the oil pan and observe if there is an oring and then a thin tube (spacer sleeve) in there. If there isn't get one and install it, if there is one there changing that seal is a BIG job unless you have the special tools! "
"
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