Hi all, I have a toyota 2sdk8. I have searched all the manuals online specs etc and am not able to determine the GPM output of the auxilliary to determine which motor to purchase for a 540 pto conversion. I have displacement/rev and use a rev of 2400 to get 39 gpm from the pump. But I am not sure how I can translate this to GPM output at auxilliary. I assume this depends on the pump efficiency, demand of the motors/cylinders, piping and valve restrictions etc Looking at surpluscenter I can't see a PTO pump rated to 39 GPM if the machine could put this out. The control valve limits the pressue to 2180psi but without the GPM how do I know which motor to use. Any advice appreciated. Thanks Phil