well, I am still kicking around the idea, I might not have been clear. I want the suspension to put under my 51 3/4 ton. Before anybody says leave it original, I have two trucks, I am restoring one of them original, but I would like to make the other one a daily driver. What challenges does anybody see or anticipate before I actually spend any money or time on the project. No, I haven't put a tape measure to it but I have heard of it working. I would appreciate all input. thanks.