John deere corn head grease is a thixotropic grease. It will reduced viscosity when subjected to shear stress or agitation, such as that within a corn head gearbox, and then thickens again to its original consistency when at rest. How much shear stress or agitation do you have in a steering gear box? Very little if any. It’s better to use a NLGI #00 grease. It will penetrate the steering shaft and the balls within the nut and the bearings a lot better than the John deere grease.
If you have a worn Pitman shaft seal, replace it.
Last edited by jimgmc; 08/22/2025 2:34 PM.