Thanks for the response. Im running a sunpro electrical gauge and sending unit. I double checked them with a compression tester outfitted with a 1/8" adaptor. and the check valve removed. They are within 15-20 psi of eachother, and I've noticed my cheap compression tester runs a bit low compared to my friends tools. I think the electrical unit is pretty close, and these pressures are about double what id like to see anyway. 140 psi freaks me out.
Good luck with your engine. The 3RZ is awesome! I love the way it runs and the powerband. I have no reference to how much the balance shafts affect vibration, as I bought the truck broken, but I'm totally happy with it other than this oil pressure issue. If your used to driving a diesel truck it seems like a super smooth engine even without balance shafts LOL.
Did your truck have some kind of kit? Is it running an aftermarket squirter?
