I recently dropped a Cummins in my Ford and have been driving it for only a month or so. Everything has been gravy until last night when I had steering issues, the power steering works fine to the right but not at all to the left. I am running a hydroboost setup I pulled from a truck in a salvage yard to replace the vacuum booster from the original gas engine. Also I have noticed the brake pedal to be stiffer than other trucks too. The gear box is a reman from Oreillys that is only a few months old.