My background is in engineering, altho it's computer engineering. I did some work on vehicles for data analysis. We talked a lot about this sort of thing amongst the mechanical guys and I do have a bit of study in statics & dynamics. It's very bad lol The stresses I'm sure are well out of design spec. But 4 wheel drive isn't enguaged that much. It's where it would be at it's highest stress level. I'd never recommend doing this, unless angles are kept very close to factory ~ which would require a lot of structural changes to the car, not quite sure how you'd do it really. Unfortunately, the guy I bought the truck from already lifted the front. I'll probably eventually lower it back to spec.