hi, have this John deere 6675 skid steer. I decided to take it all apart and pretty much paint and restore it. I noticed the gear case has 2 pipe elbows on each side. The bottom pipe elbow has a 3/8 plug and the top has some odd looking plug with a 10/32 nut. my question is, what are these, what oil goes in? and in what elbow does oil go in. thanks so much for help.
Pictures?