I can't find a specific amount in my '67 Chassis Service or Chassis Overhaul manuals. Both just say to "fill lubricant to a level even with the bottom of the filler hole."
Still, that doesn't help determine how much to buy to fill-her-up!
Joe
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'67 Chevy C20 fleetside, 250 inline, 3 on tree, heavy duty clutch and brakes, heater, steel bed floor
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"Tighten until the stud snaps, then back off half a turn."
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