Hey fellas, I'm nearly done with my Murray riding mower repower, just waiting for those last few parts to show up. The machine is a Murray 12HP/38" cut model, early 90's manufacture. The model number I got off the plate on the back is 38608X12B. It has a 5 speed manual transaxle with the shift knob in the center. While I've got it apart I'm wondering is there any maintenance I can do to the transaxle? I wanted to change the oil in it but can find neither drain or filler plugs. I cleaned all the debris off it and have a new motion drive belt on the way with the other parts. There is nothing wrong with the transaxle and I would like to keep it that way. Any suggestions are welcome.