What fluid to use in a vintage sprintcar steering box

Do these old girls require anything special for lubricant?

Thanks,
Steve

 

How old? My converted Franklin had light grease in it.

 

I would think gear lube would be used in most of 'em.

 

I ran 90 weight gear lube in my Norden gear. It was the same Lubrication Engineers (red stuff) that I used in the quick-change.

 

I use Delco Penn heavy if the box is loose

And Army surplus grease on the good ones........ I have several cans.

Even when full you can see the bottom of the can.

I'll try to get the spec# if you wish, but have to find the can in this mess