Truck is leaning to the left?

I have a 2000 Ford F-150 and would like to know the possible reasons it's leaning to the left. I've replace all four shocks and put in a flip kit. I'll be replacing the coil springs but if that doesn't fix the problem I would like to know where I should look next.

Did it lean before the flip kit? If your answer is yes… Your springs, suspension wear or damage, possible frame problem.

Coil springs and leaf spings give you the ride hight, but c/k all bushings on the suspension

Shocks/struts have NOTHING to do with ride height. That's all controlled by the springs.