The rear suspension geometry is different after the suspension lift. You need a longer trac bar. According to my calculations, after 3-4" lift the trac bar must be about 1/4" longer. Talk to Matt about this.

Oleg
Axiom 4WD 2004: OME shocks, 32" BFG Mudders, RockSliderz, OME929+2" spacers, Stinkyfab bent RE rear links, front ARB locker, rear No-Slip locker, DOR front axle lowering kit, custom middle section skid plate, IronMan torsion bars.
Deceased Rodeo'02 4WD.