You are welcome for the picture. Oil filled hubs are standard; uses 75W-90 gear oil, the black plug pulls out so you can fill it up.
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Olympic Peninsula, WA
2008 3500HD LTZ CC 4X4 Duramax/Allison /Banks IQ / Economind tuner / SpeedBrake
2013 MS 38RESB3 #6393, modified with ES stuff & Garnet Paint
"The older I get, the better I was!"
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