Steering box leak

[Nomad50]

I rebuilt the steering box on a 1947 Desoto. When I filled the box with 90weight oil it started leaking where the shaft goes into the box. There is a cork 

seal that has rotted away. Where can I find a replacement? My plan b is to drain the oil and replace it with grease. Has anyone done this? I know it takes

a special kind of grease. It looks like this was a common practice years ago. Thanks for any help.

[greg g]

Several of us have had good results filling the box with John Deere cornhead grease.,as a replacement for gear oil.  Comes Ina tube for 7 bucks or so.  It liquefied under pressure and  it stays in contact with the parts instead of being pushed out of contact most farm supply outlets should have it or similar for other manufactures..

 

https://www.greenpartstore.com/John-Deere-Special-Purpose-Corn-Head-Gun-Grease-AN102562.html

Edited June 18, 2021 by greg g

[The Oil Soup]

Tractor Supply has cotton picker grease that works well also. https://www.tractorsupply.com/tsc/product/super-s-cotton-picker-spindle-grease-00

[Nomad50]

Is it possible to overfill the steering box?

 

 

[DJK]

I installed a grease fitting on the lower plate so I could pump it in from the bottom until it reached the fill hole.

[JBNeal]

additional information - steering gearbox refresh

[NoGoFargo]

I read a post a while ago about using new style seals in the steering box. 
I searched and can’t find the original post but here are some pictures with the part numbers used. 
hope this helps. 

[Nomad50]

I ended up making my own gasket out of a a 11/4" cork. Drilled out the center then shaped it with a bench grinder. The spring pressure holds it in. No leaks so far. I will keep that part number just in case. Thanks.