As we know, the front suspension of X is a self-governd suspension,how can i refit it if i want upgrade it?(i want the pictures and the fittings)
another qustion: how can i upgrade the chassis?
what parts are we need if i want to achieved the 3 inch body lift?

Assuming it is the same suspension as an Xterra

Suspension system upgrades-Click Here

With the suspension upgrade you will also need a steering upgrade SOON. It puts alot of stress on the stock steering.

Chasis upgrade? Skid plates maybe.

Calmini Skid Plates - Click Here

Skid Row Skid Plates- Click Here