The Stovebolt Site Forums The Parking Lot Big Bolts 55' 6400 Speedometer Reducer

Hi, I'm cleaning up my speedometer gear reducer out of my 2 ton. It looks like the larger screw on the top is for grease, what kind should I use? It looks like the diaphram is in good shape, though I found the whole unit disconnected on the floor. The vacuum line was rotten. Hopefully I can replace the line and it will work. I love this site, I get lots of enjoyment out of what you all are doing. Thanks.

Here is the link to pics of what I'm talking about.
http://s311.photobucket.com/albums/kk474/seangardner38/?action=view&current=speedoreducer2.jpg

I ended up just putting some 90wt gear oil in through the slotted head screw on top while rotating the square drive key. It was stuck at first, but after turning it a while it turns easily. It will be nice to have a working speedo.