I'm really confused! Lifting your truck has absolutely NO effect on your auto insurance. You have to tell me where you got that information or why it is a concern, because inquiring minds want to know.

As far as warranty is concerned, it really depends on the dealership. MOST of the time they will still warranty everything that the lift doesn't effect. If you break a shock it likely won't be covered due to the ride height being changed, if you have a motor problem it would be covered since the lift doesn't change anything for the motor.

Mark, as to your question, it is commonly referred to as a "torsion lift" since it doesn't include control arms it is easily distinguished that way.