Brandon,
the body lift may have put the steering shaft in a bind.
Most lifts come with an extender that goes between the steering gear (rack) and the steering shaft. Is yours that style? If so did the extender slip right in or was it a tight fit?
The steering shaft can also be rubbing on the boot where it goes through the firewall.
The power assist should be close to what it was before the lift, unless the tires/wheels have a huge offset or you went with massive tires.