Transmition Cable housing..

My 350 turbo tranny leaks from the speedometer cable housing where it goes into the transmition and i was wondering what i need to fix it.. if i just need a new cable or if the gear sleave needs replaced.. it bugs me a lot.. thx to whoever can answer my question

The seals are available two different ways, you can get them seperatly or with the sleeve. With some rare applications you have to get the sleeve as an assy that comes with the driven gear{200r4}.
There is a o-ring to seal it to the ext housing{2wd} & a
lip seal that will seal the driven gear to the sleeve.
Be sure to check the gear, that the old seal has'nt cut into it, replace if necessary, you'll need the tooth count/color.The cable has no provisions to seal oil & with exception wont cause an oil leak, so
replace if needed.