I would recommend just removing the entire manifold. Remove air filter box and all the air intake to compressor side of turbo(gives you more room). Unplug the turbo electronics. Loosen the exhaust side clamp from the down tube. Disconnect tube going to intercooler. Disconnect turbo oil inlet and drain from block. Thatʻll take about fifteen minutes. Meanwhile spray penetrating lube on manifold bolts and turbo bolts. Remove manifold bolts and lift entire assembly out. That will give you access to the four manifold-turbo bolts. Pretty darn simple once you commit to doing it. Believe me, it is WAY harder to try and remove those four bolts while its still in the truck. My .02