Messaged Joe Wa on this but lost original message. I have a 530 utility with 31 loader that did not have PTO. Found a donor 310B and pulled the pto. It did not have a seal carrier on the shaft at all and it was the same with no internal hydro pump just the front mounted pump for the loader. My question is the 530 has the seal carrier but with no internal hydro pump does it matter if it bleeds compartments? It has a gaping hole were the reverse gear would have been but since this is a shuttle it is not installed. The carrier did have the plug in it so that is what my concern was. Once I removed the plug it exposed the nice new bushing....pto slides right in and seems like it will work fine. Leave the seal or put one in to make pool oil on the bushing on the front side of it? Thanks for any input!