hi every one newbie here I have a 6211 with brake problems ,that I am in the process of fixing myself, no brake on right side so removed half axle with small engine crane , handbrake band worn out . I removed wheel that shoes press on not sure of correct name ,but discovered shoes in good shape but covered in oil , almost sure its not brake fluid as level never dropped . the seal next diff looks ok ,but I will replace where else could this oil come from