This pic shows a bleeder valve

This picture shows a bleeder valve on the casing is that for forcing gear lube in??

http://www.carsteering.com/data/all_images/GB-58383G-700-Map.jpg

 

Your pic link is of a pwr steering box.
IIRC one of the mounting screws for the top plate is a fill/check hole on the manual box, and it uses SAE 90 GL4 oil.

 

Thanks for the reply.

1) is there a drain or do you have to suck the old gear lube out??

2) Have a pic of the mount hole you are reffering too?

 

No pic handy.
On the top of the gear box is a plate with 3-4 screws. In the center is an adjusting screw with locknut. One of the screws that mounts that plate.
If it cools off some tommorow or so I might be able to dig up an old one in the shed and take a pic.

 

Probably don't need to change it. I checked my 1988 a while back and the color still looked brand new like honey.