From what i have found, is that pump pressure is not the only problem with t400. Most of the crank endplay problems come from too much cooler line pressure. anything over 50 psi cooler pressure is concern for a crank killer. I have seen 70 to 100psi cooler pressures on some t400's
. You can google search and find more solutions. fwiw restricting the convertver feed in the pump is the cure for crank killer T400's.