My JD 310C was slow about going into forward but went into revesre fine. I checked the fluid level in the reverser and it was a bit low. I noticed a slight leak from a Tee coming out of the side and it has a wire coming out one end and I think the hose goes up fron to a cooler. I rotated the Tee one more revolution to stop the drip and drained the oil out and replaced to proper level. It ran fine for two hours and then quit moving all together. I started it the next day and it moved fine. I then ran it for another two wours and it quit moving again. I rolled the front bucket back and moved the tractor back some and it started moving again. I had to do this a couple more times to get it back to the shop. I think if I were to go start it now it would probably move for a while. It has always lost speed when I had it in road gear and going up a hill to where I didn't use the road gear much. Can anyone help? It is a 1989 Model 310C backhoe. It doesn't have front wheel assist.