Hello I’m Billy mays and my son and I are building a c2500 single cab and we have raised the truck using 4” lifted spindles . And let me tell you it has not been an easy task , but with patience and persistence we have finally got to the alignment stage . We have replaced all the front end parts except the coil springs . I’ve been told that we can’t use the stock upper control arms . Well one of the questions I have is why ? The whole reason we used the spindles was so we would not have to change out everything . But the alignment shop said they can’t adjust the camber to specs. Can someone give me some insight into this and give me a little direction so we can move forward with this project ? Thank you