Glen wrote:Hi,
Here are pictures from TM Tractor of the right final drive for a LoBoy. The 3rd pic down shows where the brake goes in it. It shows the oil seal also. There is a seal on each side of the brake drum basically. So 2 seals on the left and 2 seals on the right. I would replace all 4 seals, if you are replacing both brakes.
http://www.tmtractor.com/tm-tractor/glb/rhdrive_001.htm
If there are any leaking seals they are in the transmission case where the axle slides in. They likely are not bad though if the transmission has been overfilled. They are meant to keep back the "splash factor" as the proper level is just below the seal. Even a new seal will leak if the trans is overfilled. With that said, it would be wise to replace the trans seals while the access is there.