65 kv 4000 front axle lube capacities

[4X4000]

Hi all
Have been looking for info on the fluid capacities for the kv4000 front axle. Mainly the fluid requirements for the compensating ring housing. Motors truck manuals from the late 60's and 70's have the front axle rebuild section in most manuals but it doesn't include fluid capacities.

How much oil goes into the compensating ring housing.

I have been setting up the truck to haul large camper, 22 foot fifth wheel trailer converted to camper.

Any info would be greatly appreciated as it seems nothing is available.

Thanks all