If I remember right you are in CA. correct ? The good news is yours is a 75 so you do not have to worry about smog. I would make sure everything is plugged properly at both ends that you take off, ( and take off the bracket, so it is not visable that you took off the smog pump if at all possible ), and do not throw away any of the parts you take off, you never know with Ca. when things could change for our trucks in regards to the law.