I can take some. It was pretty easy, on the back of the pump there is 6-10 big phillips head screws. use an impact driver to get them off, cover lifts off, gears slip out easy, put some vasoline on the new ones and slip them in. Loctite, and impact driver the cover back on.
he pressure was 110psi, as it was just running a normal N1 releaf spring. I will enlarge the oil restricers, and drop the pressure back to 65-75psi with the new engine.