donot use gun grease as it will not lube all it will cavity out on you,,if you think the sector has gun grease in it add some 10wt oil and hope it will get some of the hard lube flowing....A note to all you lovers out there if your steer box leaks go to a John Deere dealer and get a tube of cornhead lube it will flow and seals have to be very bad before it will leak out...doc