Our aim is to establish some signatures of the extra neutral gauge boson X0, predicted in a version of the SU(3)c × SU(3)L × U(1)x model with right-handed neutrinos, by considering the process p+p → X0 +X0 + X. In this work, we show some results concerning the LHC energy regime (√s = 14 TeV) and projected luminosity. Some distributions are shown and the X0 width is calculated. We conclude that hadron colliders can show a clear signature for the existence of X0 by comparing its production with Z pair production.