What is the best lubricant for the steering gear box on a ’53 Chevy 3600? My old shop manual says to use “Steering gear lubricant”. I don’t know what that is. When I remove the fill plug on top of the steering box, it seems that it is grease but it may just be 57 years of crud. I would think multi purpose gear oil SAE 80W-85W-90 that I use in the transmission and rear end would work but want to see what Y’all say before I make a mistake.
Any help is appreciated.
John


"It wasn't broke but I still decided to fix it. Now its broke"
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