1992. Why is it leaking transmission fluid out of yoke?

SOURCE: how to change transmission fluid in z71 silverado

may i ask why you need to already change the fluid, unless you have burned fluid normally its good for 90,000 mi,otherwise if so, the drain plug is directly behind the bell housing of the engine/tranny and the filter is right there too under the access panel the drain plug is on

SOURCE: leaking oil at spline shaft slip yoke at rear of transmission

there is a long bush type bearing in this tunnel just at the end were the seal fits in it can were out and let the prop shaft flap about, this in turn rips the seal to bits,,,also the yoke has a polished part on the end that go's over the spline into the end of the gear box tunnel the seal can were a groov into this part, and no amount of new seals will stop it leaking them as the new seal runs in this worn out groov, again ripping it to bits,,,test the long bush type bearing by holding the prop shaft yoke and pushing it up and to the side, if it moves about replace the bush in the end of the tunnel as well,, its a push in fit! with a big hammer!!
if the yoke has a groov in it you need a new prop as all prop shafts are balanced so you can just fit a new yoke it could throw the car up in the air when your driving it down the free way,,,,by shaking it apart
i hope this is of help to you

SOURCE: 2001 Silverado: I'm leaking transmission fluid but it seems to be ...

there is a transmission fluid cooler built into the radiator of your truck, which means there are steel lines that run from the side of your transmission up to the radiator, on the passenger side of the truck. the lines are a common leak point due to corrosion. depending on where the leak is, the lines can sometimes be patched, but they sometimes need to be replaced (or fabricated). good luck!

SOURCE: 2001 chevy silverado leaking steering fluid by the fluid resevoir

Most likely the hose needs to be replaced or the clamp is loose from age

SOURCE: How would transmission fluid be leaking from

Hi
What your are looking at is called an extension housing.
If you look at the point of where the shaft exits the extension housing you will see a lip seal.
I feel that your lip seal has failed..
Hope this helps.
Please leave testimony