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Discussion Starter · #1 ·
I have a 65 Vette with manual steering.
GM no longer provides the lube for this gearbox.
What are you guys using in manual steering gearboxes?
Some people say 80-90 gear oil but that leaks out at the lower seal. (maybe the seal?), another guy says he uses "special" high temp grease. Should I pack with wheel bearing grease? The box is a little close to the headers so it probably gets hot. Gear oil just seems to thin to me. There is a little plug on the top side of the box's cover that says "lube". It will be kinda tough to get grease in there but maybe I could pump it in with a fitting.

What you all think?
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