I have Porkchop's old 2014 38SBSK3 that he converted to the hard grease. I am not sure I like it. I would think 85W90 would run cooler. Porkchop had trouble and converted all 4 wheels to hard grease. I drive tractor trailer and both the truck and trailers run oil bath. Should not be a hard job to convert. Just new wheel seals. And a lot of cleaning of the bearings. Just wanted other people's opinion.
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