what I would do that's easier and no hassle and might help a lot is,
remove speedo cables from both ends..
and spray as best you can there into the box with a very high quality
penetrating synthetic grease.

I even lubricate sealed bearings with that stuff, sneaks right past the seal
edges.
I am more suspect of your speedo cables myself..
but it could be the box. Just never heard of one being noisy ..
but lots of noisy speedo cables.
I lube them from the top, while turning the left front wheel with my foot..
so lubricant has a chance to flow downward in a rotating cable assembly.
Works real good.

leaving the wires disconnected won't cause any problems I don't think.

----- Original Message -----
From: <titantic01@AOL.COM>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Monday, August 09, 2010 7:29 AM
Subject: Re: OSX box

 I got an answer to my question from a member concerning my OSX gear box
(counter) yesterday and I am wanting to know that after I remove the 4
screws (I presume I will have to remove it from the van to get at it) do I
need to put some kind of gasket on when I close it up after squirting it
full of grease and also, if I just leave it out and use the longer
speedometer cable what do I do with the wires that go to it so that the dash
light won't come on with the thing disconnected?

Thanks again list.

Chris S.