[obijuan]

I wouldn't. It's two totally separate systems. Are the ball joints loose? Irregular tire wear? Moog ball joints wear prematurely. I suggest genuine dana spicer. But only if they need it.

Don't overlook the steering box mounting at the frame. They tend to crack at the bolt holes for the steering box. Also if it's lifted without caster correction that will cause driftiness. 5-7 degrees is ideal.

If its lifted are your spring bushings ok? Upper shackle hanger bushings often go unchanged with lift kits. Energy suspension offer poly replacements.