Manual steering gear "lube"

[BB73Challenger]

OK - I'm putting in a used manual steering gear box.
An E-bay item, even though it looked good I decided to take it apart to verify everything would be good.
Indeed the insides look great, no wear on bearing sufaces and all teeth inside look good.

Now I want to replace the "grease" that was in it.

I've heard a few schools of thought what to use and what NOT to use.

Can anyone give me a solid answer - what to use?
I've heard use CV grease - I've heard use 80-90 gear oil - I've heard DON'T use lithium grease.

Any help??
Thanks again guys

[Bullitt-]

Service manual says" Use steering gear lubricant, if not avail. a good grade of muliti purpose lubricant NOT gear lube.
Googled & got http://www.exxon.com/USA-English/Lubes/Product_Information/Automotive_Gear_Oils_Collection.asp

[Jacksboys]

I filled my with 00 grease and have not had any problems yet (about 3000 miles). 

Chryco Psycho might be the best person to ask.

[Chryco Psycho]

synthetic grease would probably be the best option now

[BB73Challenger]

Thanks guys - bought a good synthetic grease this weekend and will be putting it back together!