4w drive leaking

[unibody madness]

My HST273 is leaking hyd oil past the seal at the trans where the drive shaft goes. Nothing seems to hold this seal in place and of course it does not appear to be a standard seal. has anyone had to replace this and where did you find parts?

 

[myyaz33]

You got a picture? I am pretty sure I replace mine and no dripping since.