The Tuff Country 2.5 lift kits is were all my suspension modification started. I put in on my F150. It was the true saying "Ford Tough". I dealt with it till the springs settled and Les Schwab redid the alignment to within spec. It always pulled going down a normal road and a back road the steering wheel was all over the place. I talked to Kevin (DNBELOWBRONCO) once and he had the rough country lift kit and he said his was smooth. I look at the coils and notice they were progressive coils. Just an FYI on another route.