Thats a regular gear pump with Scott's support bearing.
Theoretically gear pumps do not like to be spun fast, but given how long your average rockcrawler will be driven in its life, they have been proven to hold up quite well.
What will happen in the long run is that the gears will wear and the pump will internally bypass (problematic at low rpm).
@Timjus is using one and I beleive he got something like 5 years out of his before changing it.
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